division of cells that already exist (pre-existing cells). The environment outside the cell is separated from the cytoplasm inside the cell by the cell membrane...

Stem cells are cells of the body (somatic cells) which can divide and become differentiated. When an organism grows, stem cells specialize, and take specific...

A cell wall is the outer part of a cell in plants, bacteria, fungi, algae, and some archaea. Cell walls protect cells from damage. They also help keep...

Cell division is how a cell, called the parent cell, divides into two cells, called daughter cells. When the cell divides, everything inside it divides...

The cell nucleus (plural: cell nuclei) contains the cell's genes and controls the cell's growth and reproduction. It has a double layered nuclear membrane...

inside of cells from the outside. In all cells, the cell membrane separates the cytoplasm inside the cell from its surroundings. Animal cells are contained...

B cells are lymphocytes, a type of white blood cell. Once the B cell is activated, it turns into a plasma cell, and starts producing antibodies. They are...

cell becomes a more specialized cell type. It is part of developmental biology. Different tissues have different kinds of organelles inside the cells...

cells to destroy the viruses or bad cells. T-cells can either help make more B-cells, or kill cells with antibodies. Natural killer cells kill cells in...

Cell biology is the study of how living cells work. This includes the structure and function of the cell organelles, and the carbon-based molecules which...

where T cells mature. Cytotoxic T cells (Tc cells) Helper T cells, (Th cells) Regulatory T cells (Treg cells), used to be called suppressor T cells Natural...

submarines require very large batteries. Simple cell Dry cell Wet cell Fuel cell Solar cell Electric cell An extremely important class of oxidation and...

In cell biology, a receptor is a special structure that can be found in cell membranes. These are made of protein molecules such as glycoproteins. Receptors...

This cell is also known as electrochemical cell. The simple electrical cells were first developed in 1800s. They are also called galvanic cells, because...

Sickle cell anaemia is a genetic disease. It affects red blood cells. It changes the cells from flexible disks into rigid crescents. When many red cells take...

Cell growth (or interphase) is shorthand for the idea of "growth in cell populations" by means of cell reproduction. It is the stage which cells are preparing...

blood cell is any cell of any type found in blood. There are three main types of blood cells in mammals: Red blood cell-carries oxygen White blood cell-kills...

Red blood cells (also known as RBCs, red blood corpuscles or erythrocytes) are cells in the blood which transport oxygen. In women, there are about 4.8...

WWE Hell in a Cell was a yearly professional wrestling pay-per-view (PPV) and livestreaming event made by WWE. The first event took place in 2009, replacing...

Squamous cell carcinomas (SCCs), also known as epidermoid carcinomas, is made up of a number of different types of cancer that result from squamous cells. These...

A fuel cell makes electricity using the energy released by mixing fuel with air, a reaction which creates water and sometimes also carbon dioxide. The...

plants have cells. Plant cells have a nucleus with chromosomes and DNA, and they have mitochondria. Those are common to all eukaryotic cells. But in some...

Cell theory is the historic scientific theory, now accepted by everyone, that living organisms are made up of cells. Cells are the basic unit of structure...

of turning stem cells into sperm. It was also called the "mother cell." The cell also helps in the creation of stem cells. Sertoli cells get their name...

All the cells in the body of an organism are somatic cells, except for the haploid gametes (sex cells like eggs and sperm) and other cells involved in...

A neuron (or neurone) is a nerve cell which uses electrical impulses to carry out their purpose. Neurons are the basic units of our nervous system. Their...

A mast cell is like a white blood cell (leukocyte) which lives and acts in tissues. It is made in bone marrow, and matures in tissues, where it defends...

Dendritic cells (DCs) are white blood cells forming part of the mammalian immune system. They process antigen material from pathogens and put it on their...

Solar cells are semiconductor devices that convert light to electricity. They have many applications. They have long been used in situations where electrical...

A clandestine cell system is a way of organising a group of people so that it is kept secret. This is so the group are better able to resist people entering...

Sperm are the male reproductive cells. Most animals and plants use sperm to reproduce. They have different ways of making and releasing the sperm. In...

Primary cells Zinc-carbon cells, also known as Leclanche cells Alkaline cells Lithium cells Mercury cells Silver oxide cell Secondary cells Nickel-cadmium...

organism with complex cells, or a single cell with complex structures. In these cells the genetic material is organized in the cell nucleus. Animals, plants...

helper cells are a kind of lymphocyte blood cell, produced in the thymus. They do not kill or eat bacteria. What they do is to help other immune cells target...

In cell biology, an organelle is a part of a cell that does a specific job. Organelles usually have a plasma membrane around them. Most of the cell's organelles...

Tissue culture or cell culture is a way to grow cells in a laboratory. Cells are taken, and put into in a flask or Petri dish. They can be grown on a growth...

Natural killer cells (or NK cells) are a type of lymphocyte critical to the innate immune system. NK cells provide a rapid response to cells infected by...

structure is almost constant. We recognize 3 cells: the Hadley cell, the Ferrel cell and the Polar cell. The movement of air masses is influenced by coriolis...

A primary cell is a battery that is made to be used one time only. It cannot be recharged. Once all the power is used up, the battery must be thrown away...

A cytotoxic T cell is a type of white blood cell. It is a T lymphocyte which kills cancer cells, cells infected with viruses, or cells that are damaged...

Cell (2006) is a novel by Stephen King. The book was published on January 24, 2006. It is about Clayton Riddell, an artist from New England who tries to...

killer T cells (NKT) are cells formed from small lymphocytes. They are a type of T cell, and are different from natural killer cells (NK). NKT cells are important...

(Latin: "egg", plural: ova) is the name for the haploid female reproductive cell, or gamete. Both animals and land plants (embryophytes) produce ova. Ova...

Cell junctions join cells in some biological tissues. They have long protein chains, The proteins keep connections between neighbouring cells or between...

Apoptosis is the controlled death of a cell. It is an important part of tissue development. For example, during limb development in a foetus, apoptosis...

A wet cell is a cell that contains a liquid electrolyte. Most batteries have a paste electrolyte. Car batteries have a liquid electrolyte. They are inconvenient...

A gamete (or germ cell, germ-line cells, pluralː gametes) is a specialized sex cell which fuses with another gamete during fertilization (conception)...

In four dimensional geometry, a 16-cell, is a regular convex polychoron, or polytope existing in four dimensions. It is also known as the hexadecachoron...

A prison cell, jail cell or holding cell is a small room in which one or more prisoners are held. There are two types of jail cells. One type is a holding...

Brain cells are a group of cells that includes neurons and glial cells. The neurons perform the tasks, and the glial cells look after the neurons. Current...

Glial cells are support cells for the nervous system. In Greek, Glia means "glue". Glia are said to be the glue of the nervous system. Glia occur in both...

formed by a pair of cells known as guard cells. These adjust the size of the opening by opening or closing. To open a guard cell, protons (hydrogen ions...

A cell can mean: The cell, the basic structure of a biological organism Prison cell, a room in a prison or jail where people are kept. Cell (Dragon Ball)...

types of chief cells which include the gastric chief cells, which are found in the stomach and help with digestion; the parathyroid chief cells, located in...

A photoreceptor cell is a specialized nerve cell that is sensitive to certain wavelengths of light. This short article about biology can be made longer...

Small-cell carcinoma (also known as "small-cell lung cancer", or "oat-cell carcinoma") is a type of highly malignant cancer that most commonly arises within...

pluripotent stem cells are a kind of stem cell. Shinya Yamanaka discovered them in 2007 at Kyoto University. They are often called iPS cells. iPS cells are a kind...

In living things, cells send and receive signals. Cell signaling is a fundamental property of all cellular life in prokaryotes and eukaryotes. Signals...

Renal cell carcinoma is a type of renal cancer (cancer of the kidneys). If it is found early, it can often be cured. However, if the cancer has already...

Cell (Japanese: セル, Seru) is a fictional character in the Dragon Ball manga and third major villain in Dragon Ball Z anime. He first appears in chapter...

Langerhans cells (LC) are tissue-resident macrophages of the skin. Doebel, Thomas; Voisin, Benjamin; Nagao, Keisuke (2017-11-01). "Langerhans Cells – The Macrophage...

Hell in a Cell was a professional wrestling pay-per-view (PPV) event made by World Wrestling Entertainment (WWE). It took place on October 4, 2009 at the...

membranes of a cell. The membranes of cells are very small, while tissue membranes are larger. A membrane can mean a thin layer of cells or tissue. This...

A padded cell is a special room in a hospital for mentally ill people. It is made so that the patients can be put there when they go through a crisis (or...

various cells. These include red blood cells, white blood cells and platelets. Platelets help blood to clot. Hemoglobin is in red blood cells. White blood...

Leydig cell hypoplasia (LCH), also known as leydig cell agenesis, is a very rare genetic disorder that affects the endocrine system. It only affects people...

secondary can be recharged and reused. A Battery can be one cell or many cells. Each cell has an anode, cathode and electrolyte. The electrolyte is the...

A mobile phone (also known as a hand phone, cell phone, or cellular telephone) is a small portable radio telephone. The mobile phone can be used to communicate...

In cell biology, a granule can be any structure barely visible by light microscopy. The term is most often used to describe a secretory vesicle. A group...

Clear-cell sarcoma is a rare form of cancer called sarcoma. It is known to happen mainly in the soft tissues and dermis. Recurrence is common. Clear cell sarcoma...

cycle of cell division. During this process, the chromosomes of a cell are copied to produce two identical sets of chromosomes, and the cell's nucleus...

Club cells, also called bronchiolar exocrine cells, are small, cube-shaped cells with tiny hair-like structures. They are found in the small airways (bronchioles)...

also haemopoiesis) is the formation of blood cells. In a healthy adult person, about 1011–1012 new blood cells are produced daily to keep steady state levels...

Active transport is when molecules move across a cell membrane from a lower concentration to a higher concentration. This takes energy, often from adenosine...

A myocyte (also known as a muscle cell) is the type of cell found in muscle tissue. Myocytes are long, tubular cells. They develop from myoblasts to form...

Heterojunction solar cells (HJT), also known as Silicon heterojunction (SHJ), are a type of solar cell. They are mass-produced, and the second-most common...

A fuel cell vehicle (FCV) or fuel cell electric vehicle (FCEV) is an electric vehicle that uses a fuel cell; Sometimes it is used in combination with a...

rechargeable (primary cells). Lithium-ion batteries do not contain lithium metal (only lithium compounds) and are rechargeable (secondary cells). They also do...

Hell in a Cell (2013) was a professional wrestling pay-per-view show made by WWE. It took place on October 27, 2013 at the American Airlines Arena in Miami...

Cell (Japanese: セル, Hepburn: Seru) is a fictional character and a major villain in the Dragon Ball Z manga and anime created by Akira Toriyama. He makes...

what cells do to break up sugars to get energy they can use. Cellular respiration takes in food and uses it to create ATP, a chemical which the cell uses...

A button cell (also known as a watch battery or a coin battery) is a small, single-cell battery that is shaped like a squat cylinder, resembling a button...

all cells come from other cells; they still thought cells could appear on their own. Later, Robert Remak and Rudolf Virchow proved that new cells come...

light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close. They regulate carbon dioxide...

Hell in a Cell (2014) was a professional wrestling pay-per-view and livestreaming show made by WWE. It took place on October 26, 2014 at American Airlines...

cytotoxic (cell-killing) granules which then destroy the altered cells. T cells (thymus cells) and B cells (bone cells) are the main cells of the adaptive...

Regulatory T cell or Treg for short are a type of T cell that regulates the immune system to prevent autoimmunity when an activated white blood cell overreacts...

Palisade cells are special cells in the leaves of plants. They are the main place where photosynthesis takes place. They absorb light so photosynthesis...

one cell. They are divided into two quite different types, from different classification kingdoms. The prokaryotes, bacteria and archaea, have cells with...

Clear cell of the kidney is an unusual form of renal (kidney) cancer. It may spread from the main tumor site (in the kidney) to other parts of the body...

Merkel-cell carcinoma (MCC) is a rare and aggressive skin cancer happening in about 3 per 1,000,000 population. It is also known as cutaneous APUDoma,...

cells are known as 'induced pluripotent stem cells' (iPS cells). iPS cells are like embryonic stem cells from a blastocyst (the embryo a few days after...

Phagocytes are the white blood cells that protect the body by eating (phagocytosing) bacteria and dead or dying cells. They are important for fighting...

Japanese cell biologist. He won the 2016 Physiology or Medicine for his discoveries of how cell autophagy works. Autophagy is the process that cells use to...

prokaryote or eukaryote cell. The RNA or DNA strand then takes over the cell machinery to make copies of itself and the protein coat. The cell then bursts open...

October 8, 2008) was a Romanian cell biologist. He is best known for the innovations in electron microscopy and cell fractionation which helped lay the...

also known as lung carcinoma, is the uncontrollable growth of abnormal cells in one or both of the lungs. Lung cancer is more common in the right lung...

secondary cell, is a battery that can be recharged over and over again with electricity. A battery that is not rechargeable is called a primary cell or disposable...

Hartwell and Timothy Hunt, for their discoveries about cell division. They discovered cycle of cell division is regulated by cyclin and cyclin dependent...

4-simplex. It is also called hyperpyramid, 5-cell or pentatope. It has 5 points, 10 edges, 10 faces, and 5 cells. Cells are the four dimensional equivalent of...

A nickel-metal hydride battery, also known as NiMH, is a secondary cell, meaning it is a rechargeable battery. They are used in cameras and other electronic...

Hell in a Cell (2011) was a professional wrestling pay-per-view show made by WWE. It took place on October 2, 2011 at the New Orleans Arena in New Orleans...

A police cell, also called a drunk tank, holding tank or temporary holding cell is a large room in a police station or the booking suite of a jail for...

A mercury battery is a primary cell. It has similar performance to, but is much cheaper than, silver oxide batteries. Its disadvantage is that it contains...

The B-cell lymphomas are types of lymphoma affecting B cells. Lymphomas are seen as "blood cancers" in the lymph nodes. They grow more often in older adults...

Hell in a Cell (2010) was a professional wrestling pay-per-view show made by World Wrestling Entertainment (WWE). It took place on October 3, 2010 at the...

cell splits into two halves, producing two pools. After replicating its genetic material, the parent cell divides into two equal sized daughter cells...

Hunt, for their discoveries of protein molecules that control cell division. When cells divide, they divide in phases called G1 (growth), S (synthesis)...

Cone cells or simply cones are special photoreceptor cells in the retina. They react to light and work best in relatively bright light. Cone cells are...

tubular outgrowth of a hair-forming cell on the epidermis of a plant root. They are lateral extensions of a single cell, and invisible to the naked eye and...

gets in and out of cells. The turgor pressure of a cell is largely maintained by osmosis across the cell membrane between the cell interior and its environment...

Celles is a municipality in the Belgian province of Hainaut. In 2007, 5447 people lived there. It is at 50° 42 North, 03° 27 East. "Werkelijke bevolking...

up inside the nose. It contains millions of olfactory receptor cells. Each receptor cell has tiny hairs called cilia that pick up the scent molecules....

beings: bacteria, and Archaea. They generally do not have a cell nucleus, nuclear membrane or cell organelles, however a small number of exceptions have been...

more than one cell. This is the case for animals, plants and most fungi. In such organisms, cells are usually specialised. All the cells with the same...

protoplasm of a cell outside the cell nucleus. It is the jelly-like material plus the organelles outside the nucleus, and inside the cell membrane. Many...

explanation of life is called the cell theory. The cell theory has three basic points: all living things are made up of cells. The cell is the smallest living thing...

in this process. The cells of an animal or a Vascular plant have two sets of chromosomes: they are diploid. When gametes (sex cells) are produced, they...

The chromosomes of a cell are in the cell nucleus. They carry the genetic information. Chromosomes are made up of DNA and protein combined as chromatin...

Rod cells are one of two types of photoreceptor cells that can be found in the retina of the eyes of humans and other mammals. Rod cells are very sensitive...

is the division of cells after either mitosis or meiosis I and II. During cytokinesis, the cytoplasm (the liquid center of the cell that holds the organelles...

A sealed lead acid battery or gel cell is a lead acid battery that has the sulfuric acid electrolyte coagulated (thickened) so it cannot spill out. They...

cell or tissue that gets the message is called the 'target'. Hormones only act on cells which have the right receptors. Many different kinds of cells...

eukaryote cell. They are in the cytoplasm, not the nucleus. They make most of the cell's supply of adenosine triphosphate (ATP), a molecule that cells use as...

his work on cell division. The prize was shared with Paul Nurse and Leland H. Hartwell. They had discovered the molecules which control cell division. Cyclins...

most cells such as skin, muscle, and nerve cells, contains the genetic instructions that cells use to make proteins, but it is absent in some cells like...

immunologist and cell biologist at Rockefeller University. He studied a kind of cell in the immune system and called them dendritic cells. He made these...

the nucleus out of cells in tissue culture and putting them into other cells whose nucleus has been removed. It is called somatic cell nuclear transfer...

solar cells are an idea for solar cells that are designed and engineered to be made from 200 mm, 300 mm, or 450 mm silicon wafers. Hexagon solar cells made...

is the formation of cell types, from what is originally one cell – the zygote or spore. The formation of cell types like nerve cells occurs with a number...

terrestrial land. Wikidata has media related to: Pancrustacea "cell.com" (PDF). cell.com. "WoRMS - World Register of Marine Species - Pancrustacea"....

The innate immune system defends the host from infections. It includes cells which recognize and respond to pathogens (germs) right away. The innate immune...

An alkaline battery is usually a primary cell (it cannot be recharged), but some are rechargeable. It is very common. Duracell, Rayovac, and Energizer...

Cytology is the study of the cells, especially their appearance and structure. Cells are the small parts that make up all living things, and their effects...

cells that get the message from nerves tell other cells that are near them. They tell the other cells by sending an electrical current. Muscle cells are...

cells. The cytoskeleton is a system of scaffolding that keeps cell shape. Other proteins are important in cell signaling, immune responses, and cell division...

of tissue in the body of animals. It is made up of one or more layers of cells. The outermost layer of the skin is a special type of epithelium. It has...

a cell. It is no longer much used. Biologists prefer to talk about the cytoplasm and the cell nucleus. In plant cells, it is surrounded by a cell wall...

Celles-lès-Condé is a commune. It is found in the region Hauts-de-France in the Aisne department in the north of France. This short article about a place...

Hell in a Cell (2012) was a professional wrestling pay-per-view show made by WWE. It took place on October 28, 2012 at the Philips Arena in Atlanta, Georgia...

nodules on plants of the pea family. Singly-celled forams which include a single-celled alga inside the cell. This is 'facultative', which means they may...

particularly cell biology, genetics, biophysics and biochemistry. Molecular biology tries to explain the interactions between the various systems of a cell. It...

place by means of the germ cells – the gametes, such as egg cells and sperm cells. Other cells of the body (somatic cells or soma) are not agents of heredity...

Celles-sur-Aisne is a commune. It is in Hauts-de-France in the Aisne department in north France. In 2015, 261 people lived there. This short article about...

Sickle-cell disease (once called sickle-cell anemia) Normocytic anemia occurs when the number of red blood cells is lower than normal, and those cells have...

States). Squamous cell cancer starts from the cells that line the upper part of the esophagus. Adenocarcinoma starts from glandular cells that are present...

(the zygote). It is the term used for any animal or plant, from the first cell division until birth, or hatching, or germination in plants. In humans, it...

the cell, and a change takes place in the cell. So, signal transduction starts with a signal to a cell receptor, and ends with a change in cell function...

They have no set shape or size, and the cell can change them as needed. They are in most eukaryotic cells and do many things. They can store waste....

is a cancer of white blood cells and bone marrow. When a person has leukemia, the body creates too many white blood cells (leukocytes). There are many...

Protists are single-celled eukaryotes (which are organisms with a nucleus). The term Protista was first used by Ernst Haeckel in 1866. The protists are...

A nerve is a group of special nerve cells grouped together in parallel. Another word for nerve cell is neuron. The special neurons grouped together in...

A Leclanche battery or Leclanche cell is a primary cell (it cannot be recharged). It was invented by the French engineer George Leclanché around 1866....

Silver oxide batteries are primary cells. They are generally found in small sizes. They are expensive because they contain silver, but do not have toxic...

single cells to whole organisms: for example, slime moulds. For them the term 'body' would mean the multicellular stage. Other uses: Plant body Cell body:...

brings about uncontrolled cell division. Oncogenes in tumor cells are often mutated or expressed at high levels. Most normal cells undergo a programmed form...

(LH, lutropin or lutrophin) is a sex hormone produced by the gonadotroph cells inside the anterior pituitary gland, where it is made. It is relevant in...

Randy Wayne Schekman (born December 30, 1948) is an American cell biologist. He works at the University of California, Berkeley. He is the editor-in-chief...

the part of a eukaryotic cell where ribosomes are made. Seen under a microscope, the nucleolus is a dark spot inside the cell's nucleus. It is made up of...

molecules outside the cell. They activate internal signal transduction pathways. This leads to cell responses to the molecules outside the cell. Louis-Jeantet...

bubble of liquid in a cell. More technically, a vesicle is a small membrane-enclosed sac that stores or transports substances in a cell. Vesicles form naturally...

caused by the cell wall structure. Gram-positive organisms have thick peptidoglycan layer. This protects them, so they do not need rigid cell walls. Ironically...

is an organelle found in eukaryotic cells. Cilia are slender protuberances that project from the much larger cell body. There are two types of cilia:...

fungal cells have ribosomes to turn the DNA genes into protein, mitochondria that produce energy for the cell, and other organelles. Fungi cell walls are...

zygote is the fertilized cell that will grow into a new animal or plant. When a female's ovum and a male's sperm cell join, the cell that results is called...

stem cells become the various cell lines of the embryo, which in turn become fully differentiated cells. In other words, a single fertilized egg cell – the...

lives inside another species, or a microscopic symbiont lives inside the cells of a host, it is called an endosymbiont. The relevance of symbiosis is its...

unit cell, which is a small pattern of points that repeats through the whole crystal. For example, in a primitive cubic crystal, the unit cell is the...

key role in promoting the idea of the cell as the foundation of, and discovered pepsin in 1836. His work on the cell has recently been re-assessed, because...

microorganisms. Bacterial cells do not have a nucleus, and most have no organelles with membranes around them. Most have a cell wall. They do have DNA,...

amino acid, protein and cell membrane synthesis, moving the cell and cell parts (both internally and intercellularly), cell division, and so on. In addition...

A nickel cadmium battery is a secondary cell, meaning it is rechargeable. It is also known as Nicad or Ni-Cd. It has a voltage of 1.2 V, although a freshly-charged...

23,purple Jane,34,blue Text in a cell may be surrounded by quotation character ("), to note the start and end of a cell (a particular column and row location)...

occurs in children, and renal cell carcinoma. Treatment of renal cancer depends on the type of cancer. For renal cell carcinoma, removing the kidney...

In cell biology, the centrosome is an organelle that is the main place that lead cell microtubules are organized. Also, it regulates the cell division...

dividing cells. They are in parts of the plant where growth can take place. Plant cells which are differentiated generally cannot divide or produce cells of...

Centre for Neural Circuits and Behaviour and the Research Department of Cell and Developmental Biology at University College London. He is one of the...

the series of electrical signals that is generated in the neurons (nerve cells) in a response to stimulus. When a neuron is not conducting or is in a resting...

somatic cell. A somatic cell is a regular body cell, not an egg cell. The nucleus of the somatic cell was removed and put into an unfertilised egg cell. The...

information from one generation to the next. When a cell divides, its DNA is copied and passed from one cell generation to the next generation. DNA is organized...

blood stem cells live. Blood stem cells produce all your essential blood cells, such as red blood cells to carry oxygen and white blood cells to fight infection...

gene activity may stay for the rest of the cell's life. They may last for many generations of cells, through cell divisions. However, there is no change in...

Lipid bilayers form cell membranes. They form a continuous sheet around all cells, and they surround most cell organelles. Lipid bilayers form automatically...

along with the control of cell growth and cellular differentiation. The process controls the organized spatial distribution of cells during the embryonic development...

The adaptive immune system is made of specialized cells and processes which kill pathogens or prevent their attack. The adaptive immune system is switched...

kind of scaffolding present in all cells. It is made of protein. It keeps cell shape, protects the cell and enables cells to move (using structures such as...

A clone is any cell or individual which is identical to another. In biology, cloning is the process of producing one or more genetically identical individuals...

DNA repair means the processes by which a cell identifies and corrects damage to its DNA molecules. In cells, normal metabolic activities and environmental...

Gastrin (mainly) G cells Ghrelin P/D1 cells Neuropeptide Y (NPY) Secretin S cells Somatostatin D cells Histamine ECL cells Endothelin X cells Duodenum produces...

Goblet cells are specialized cells found in the body that secrete mucus and create a protective mucus layer. This short article about biology can be made...

for their activities. You can think of it like a rechargeable battery for cells. Each ATP molecule is built from three main parts: a base called adenine...

Cytokines are a group of signalling molecules made by cells. They help to control the immune system and fight disease. They are similar to hormones and...

travesty".p97 As understood now, the cell theory includes these important ideas: All living things are made of cells. The cell is the basic unit of structure...

medicine and chemistry, he started to investigate how oxygen is consumed by cells in a living organism. His studies led him to identify the role of the cytochromes...

living beings, and of biological molecules in general. It is important to cell biology and physiology. The study of biochemistry involves enzymes, nucleic...

Zelltheilung (1882; Cell substance, nucleus and cell division). On the basis of his discoveries, Flemming surmised for the first time that all cell nuclei came...

white blood cells, only 1–30 of them would be basophils. Basophils contain large cytoplasmic granules. When stained, the granules hide the cell nucleus from...

the cell staining techniques then known. He showed how to tell the difference between different kinds of white blood cells, and discovered mast cells. He...

other forms of skin cancer, too. These are usually named after the type of cell that grows uncontrollably. Most skin cancers develop in the epidermis. Very...

cells called gametes, or sex cells. Gametes are haploid; they have only half the number of chromosomes as a normal body cell (called a somatic cell)...

Bert Sakmann (born 12 June 1942) is a German cell physiologist. He won the Nobel Prize in Physiology or Medicine with Erwin Neher in 1991 for their work...

Medicine. He is the director of the vascular program at the Institute for Cell Engineering. He is a 2016 recipient of the Lasker Award for Basic Medical...

complete cell walls (plants) or cell membranes (animals). Syncytia have cytoplasm and many nuclei, but are not divided into separate cells. Fungal hyphae...

nuclei. They are a kind of reserve cell which turn into macrophages and immune helper cells called dendritic cells. Monocytes work at two speeds in the...

fixed number of somatic cells when they reach maturity. The exact number is constant for any one species. Development proceeds by cell division until maturity;...

Ploidy is a term from genetics and cell biology. It is used to indicate the number of chromosome sets in a cell. Most eukaryotes have either one set (called...

made up of little cubes that he named cells. Later Anton van Leeuwenhoek made the important connection that cells are living things when he saw through...

Neurosecretion is when nerve cells make, store and release hormones. The hormonal system of the body is almost entirely controlled by the central nervous...

animal cells, every plant cell is surrounded by a polysaccharide cell wall. Neighbouring plant cells are therefore separated by a pair of cell walls....

are made of millions of tiny self-contained components called cells. Inside each cell are long and complex molecules called deoxyribonucleic acid, known...

time. Some organisms do not need access to air at all. Living things have cells, take and use energy, grow and develop, share similar chemicals, sense and...

lymphoma, non-Hodgkin lymphoma, primary central nervous system lymphoma, the B-cell lymphoma, and the hepatosplenic lymphoma. Larger-than-normal lymph nodes...

A lysosome is a cell organelle. They are like spheres and they have hydrolytic enzymes which can break down almost all kinds of biomolecules, including...

the cell membrane that are able to change their form in order to move. They are used in some eukaryotic cells to move around or to eat. Most cells that...

relationship. Cell numbers in the organs are constant within a species. Nematodes have a fixed, genetically determined number of cells, a phenomenon known...

nuclei) means the center of something. It might mean: Cell nucleus, which is the part that controls the cell, or the very center Atomic nucleus, the center of...

Histology is the study of the microscopic anatomy of cells and tissues of plants and animals, particularly the tissues. It is a part of cytology, and...

Sex is used by plants and animals, and also by fungi and various single-celled organisms. It usually needs two individuals which are different sexes from...

for: To monitor cell growth Acid quantities in chemicals Cell reactions Enzyme activity Cell toxicity Amounts of chemicals in cells Checking substances...

is the term used when a cell has half the usual number of chromosomes. A normal eukaryote organism is composed of diploid cells, one set of chromosomes...

But about 90% are squamous cell carcinomas. Squamous cells make up the main part of the outer layer of the skin. These cells line the lips, mouth, and...

Protoplast in modern biology, is what is left of a cell when the cell wall is dissolved. That leaves the cell's nucleus and the surrounding protoplasmic materials...

chemicals from a cell, or from a gland. Eukaryotic cells have a highly evolved process of secretion. The Molecular Biology of the Cell 4th edition - Alberts...

A vessel element (trachea) is one of the cell types found in xylem, the water conducting tissue of plants. Vessel elements are found in flowering plants...

cells divide in a controlled way and copy themselves to create new healthy cells. With cancer, this normal cell division goes out of control. Cells change...

An electrolyte used in "electrolytic cells" carries the ions between the electrodes of the cell. Electrolytic cells may be used to extract constituent elements...

molecules. Its main functions are to maintain a cell's shape, cell motility, chromosome movement in cell division, and organelle movement. They look like...

Yeast are microorganisms. They are single-celled fungi. There are about 1,500 different species of yeast. Most reproduce asexually, by budding. Some use...

compared the DNA of B cells (a type of white blood cell) in embryonic and adult mice. He found that genes in the mature B cells of the adult mice are...

lysis of the cell membrane[verification needed]. Gram-positive bacteria have no outer cell membrane (protective layer around the bacteria cell) and have...

nucleic acid which is going to be 'transplanted' into a target tissue or cell. It often contains a DNA insert, which contains the gene sequence encoding...

hypothalamus. Endocrine cells of the anterior pituitary are controlled by regulatory hormones released by neurosecretory cells in the hypothalamus. The...

portions of the nerve cell membrane". In addition Hodgkin and Huxley's findings led them to suggest the existence of ion channels in cell membranes, which...

the egg. It has just seven cells. Of these, one is the egg cell; it fuses with a sperm cell, forming the zygote. Another cell joins with the other sperm...

sources: Nerve cell action potential: around 30 mV Single-cell, rechargeable NiMH or NiCd battery: 1.2 V Mercury battery 1.355 V Single-cell, non-rechargeable...

hurts itself. Cirrhosis is caused by death of liver cells that happens again and again. When the cells die, scar tissue forms. This scar tissue damages the...

groups of animals. People who look at DNA in cells are called geneticists. Some biologists study using cells in factories and companies, and that is called...

time. In 1839, he coined the term 'protoplasm' for the fluid substance of a cell. Purkyně was born in Bohemia, which was then in the Austro-Hungarian Empire...

Cellulose is made from a form of glucose and makes up most of the cell wall of plant cells. This is what keeps a plant in shape. Humans and other animals...

genetic material between bacterial cells by direct cell-to-cell contact or by a bridge-like connection between two cells. Conjugation is a mechanism of horizontal...

DNA or RNA into cells. The word is formed from transformation and infection. The term is used for: Transformation of bacterial cells with viral nucleic...

The nuclear membrane (or nuclear envelope) is the membrane inside a cell around the nucleus. It has the genetic material (chromosomes and DNA) and the...

animal or plant. At its most basic, it is a sheet of cells. The cells are continually replaced by cell division (mitosis), and the layer (in animals) is...

one of the basic cell mechanisms. It allows the controlled breaking down of cell parts which do not work, or are not needed. The cell parts can then be...

Using this binding mechanism, an antibody can tag a microbe or an infected cell for attack by other parts of the immune system, or can neutralize its target...

cyclosis. Streaming is often seen in large plant and animal cells. Cytoplasm moves inside the cells. The flow is driven by forces in the cytoskeleton. The...

Non-Hodgkin lymphoma (which is also known as B-cell and T-cell lymphomas) is a cancer of the lymphatic system. The lymphatic system is a network of vessels...

parts of DNA. DNA is a molecule inside a cell that carries the instructions for making the proteins the cell will need. Each gene contains one or more...

Ribosomes are important cell organelles. They are micromolecular machines that make proteins. They do this through RNA translation, building proteins from...

A tesseract is a 4-dimensional object with eight cells. Each cell is a cube. Together, each cell makes the surface of the tesseract. Unlike three-dimensional...

"Badd Blood: In Your House", this event featured the first ever Hell in a Cell match, which was won by Shawn Michaels defeating The Undertaker with the...

Animals (or Metazoa) are living creatures with many cells that make up the kingdom Animalia. Animals get their energy from other living things. Usually...

Macrophages are white blood cells within tissues, produced by the differentiation of monocytes. Monocytes and macrophages are phagocytes, acting in general...

A desmosome is a cell structure for cell-to-cell adhesion. They are localized spot-like adhesions on the outer sides of plasma membranes. Desmosomes help...

can detect a difference between the body's own healthy cells or tissues, and 'foreign' cells. Detecting an unhealthy intruder is complicated, because...

[ˈneːɐ]; born 20 March 1944) is a German biophysicist. His works focused on cell physiology. In 1991, with Bert Sakmann, he won the Nobel Prize in Physiology...

humans, tumors can occur because the genetic code of cells is modified too much, causing affected cells to divide and expand uncontrollably. The Tasmanian...

Staining is used in microscopy to make cells and tissues easier to see and understand. This is a way to improve contrast in the microscopic image. Stains...

buildings and cooking To generate electricity through the use of solar cells or heat engines To take the salt away from sea water, making it drinkable...

Mitochondria are cellular organelles in eukaryotic cells. They convert chemical energy from food into a form that cells can use, adenosine triphosphate (ATP). Mitochondrial...

Firmicutes are a phylum of bacteria, most of which have the Gram-positive type of cell walls. The group is typically divided into the Clostridia, which are anaerobic...

animals (especially humans) age? In one way, ageing begins at birth, because cell division and growth is fastest then, and gradually slows down as time goes...

highly developed dendrite. The axon carries an electrical signal from the cell body (soma) to the synapse. There the signal passes to other neurons or to...

Myelodysplastic syndromes affect the bone marrow stem cells. The production of blood does not rely on good stem cells, but ones that have been modified genetically...

while also being quite more rare to find. Lithium-ion battery Lithium Dry cell Battery Table of batteries This short article about science can be made longer...

phase is the sporophyte, which is diploid with two sets of chromosomes per cell. Water transport happens in either xylem or phloem: xylem carries water and...

meaning "body". Somatic cell: a basic term in biology, describing the body cells as opposed to the reproductive cells Soma (nerve cell), the body ("perikaryon")...

energy in a cell. During respiration, energy is released in a form that can be used by cells. All living things respire. Both plant and animal cells use respiration...

As species of living things change over time, the DNA contained in their cells change, because of evolution. If we can extract the information from living...

de-differentiation of adult cells into a stem cell state similar to embryonic cells and second, development of these cells into new tissue more or less...

which cells lose water in a hypertonic solution. It is the shrinkage of the cytoplasm and cell surface membrane from the cell wall. If a plant cell is placed...

The centriole is a cytoplasmic structure in most eukaryote cells. It is involved in cell division and in the formation of cilia and flagella. Centrioles...

membranes. The cells of the Archaeplastida do not have centrioles. They have mitochondria with flat cristae. They usually have a cell wall that contains...

kinds of cells, but it mostly infects cells in the respiratory system, such as the cells of the nose, pharynx and lungs. Because it is in cells inside the...

Na+ (sodium) ions out of the cell and replaces them with K+ (potassium) ions. This keeps the Na+ ions outside of the cell membrane, and keeps the K+ ions...

control of DNA replication in prokaryotic and eukaryotic organisms. In a cell, DNA replication begins at specific places in the genome, called origins...

rapid growth of molecular and cell biology, many universities have split their biology departments into molecular and cell biology-style departments and...

The epidermis in plants is a single layer of cells. It covers the leaves, flowers, roots and stems of plants. It divides the plant from the outside environment...

that makes up chromosomes. It is found inside the nuclei of eukaryotic cells. Chromatin is divided into heterochromatin (condensed) and euchromatin (extended)...

help Wikipedia by adding to it. Viral entry is when a virus goes into the cell that it has infected. It is the first part of the virus’s life. Most viruses...

FreeCell is a Solitaire game that is played with a standard 52-card of playing cards. FreeCell is different from other solitaire games in the sense that...

reaches the egg cell, and fertilises the plant to form seeds. The pollen tube of most seed plants acts as a passageway. It transports sperm cells from the pollen...

convective zone Granule (cell biology), any of several submicroscopic structures, some with explicable origins, others noted only as cell type-specific features...

immunologist. He is best known for his work of finding and naming the Programmed Cell Death Protein 1 (PD-1). He is also known for his discovery of cytokines:...

In 1946, a driver in Saint Louis, Mo. placed the first cell phone call in history. The cell phone was invented by Bell Labs and future AT&T CEO, H.I...

process is known as sporulation. Endospores are small, rounded, resting cells that form inside bacteria when conditions become unbearable. They have a...

groups of cells that work together to do a job in the body. They are a group of cells having the same origin, structure and function. The cells look the...

phenomenon) is a phenomenon of cell division in tissue culture. It is the number of times a normal human cell population divides until cell division stops. We now...

cells to grow. These factors are normally made up of cell hormones or other proteins within the body. All growth factors occur naturally within cells...

organism (usually an animal) made of two genetically distinct cells. The two types of cells may come from separate fertilised eggs or zygotes. Chimeras...

Pont-à-Celles is a municipality in the Belgian province of Hainaut. In 2007, 16379 people lived there. It is at 50° 30 North, 04° 21 East. "Werkelijke...

Histones are proteins found in eukaryotic cell nuclei, which package the DNA into structural units called nucleosomes. They are the chief protein components...

pathogen-filled environment". The innate immune system is usually means all of the cells and systems that does not have to be exposed to a particular pathogen before...

won the Nobel Prize in Physiology or Medicine in 1974. He discovered two cell organelles, lysosomes and peroxisomes. He described them, and was the first...

in red blood cells which contains iron. It is used to transport oxygen around the human body. Hemoglobin is found in the red blood cells of almost all...

Lysis is when a cell's wall or membrane falls apart and kills the cell. It usually happens when the cell is attacked by a virus or enzyme. This short article...

unusual eukaryote organisms. For much of their life they live as separate cells. Then in hard times they come together to reproduce as a fruiting body....

cytoplasm. The endoplasmic reticulum is in cells that have a nucleus: in eukaryote cells but not in prokaryote cells. It takes these forms: Rough endoplasmic...

It is used by the APG II system for a clade in the monocots. They have cell walls which contain ferulic acid. It forms one of three groups in the monocots...

An adipocyte, also called a fat cell, is a cell in loose connective tissue, which is specialized for the synthesis and storage of fat. This tissue is...

Alzheimer's Disease (AD) is a brain disease that slowly destroys brain cells. As of now, there is no cure for Alzheimer's disease. With time, the different...

reactive than DNA. This makes it the more suitable molecule to take part in cell reactions. RNA is the carrier of genetic information in certain viruses,...

usually the things referred to by the word "beehive." Beehives have hexagonal cells in them, packed together. This is called a honeycomb. This short article...

types of bacteria based on the structural differences of their bacterial cell wall. Gram-positive bacteria retain the crystal violet dye when washed in...

important biological function of lipids is as lipid bilayers, the basis of many cell membranes. Another function of lipids is to serve as an energy reserve. Lipids...

Biological cells, in suitable environments, reproduce by cell division. The process is self-organising, given the basic machinery of a cell. During cell division...

receptor antagonist slows down the cell by stopping some of the cell reactions by clogging up the areas that make the cell work. They are sometimes called...

at different phases of their life. Cnidaria take their name from special cells which have organelles that sting: the nematocysts. This device is largely...

used to study sex protozoa and to demonstrate cell structure and function. Wikibooks: compare size of cells Amoeba info Leidy, Joseph (1878). "Amoeba proteus"...

single cells, but some form chains or simple colonies. They usually live in the ocean, but are also found in some soils and waterways. Diatom cells have...

nucellus is a tissue round one large cell, the megaspore. The one large cell divides, giving the egg and some other cells. An example of a simple carpel is...

receive signals from other neurons. The signals go into the cell body (or soma). A cell may have hundreds of dendrites, but may have only one axon. The...

phase is a period in the cell cycle in which cells are inactive. Cells enter G0 phase from G1 and stop dividing. Some cells, such as neurons, remain in...

against infection by fungi, bacteria and viruses. Mucus protects epithelial cells in the lungs, gut, genital, visual, and auditory systems in mammals; the...

sponge is a member of the phylum Porifera. It is a simple animal with many cells, but no mouth, muscles, heart or brain. It is sessile: it cannot move from...

Egg can mean different things: Egg (biology) Ovum, the female reproductive cell Zygote, a fertilised ovum Cleidoic egg: the type of egg produced by amniotes...

angiosperms. He came up with one of the modern laws of plant cytology: "New cell nuclei can only arise from the division of other nuclei", and originated...

in plants, fungi, protists, in fact all eukaryotes. Fertilization makes a cell with twice as many chromosomes. The eukaryote life cycle includes meiosis...

living things. They are autotrophic eukaryotes, this means they have complex cells, and make their own food. Usually, they cannot move (not counting growth)...

plants. Its cells have thick, hard walls. Xylem tissue dies soon after it is formed and is the wood in the middle of a tree. The dead cells are like pipes...

telephones. A telephone that can be carried around is called a mobile phone or cell phone. These became popular in the 2000s. Today, it has become common for...

which carries cells and fluid back to the blood system. Lymphatic vessels carry lymph, a colorless, watery fluid, and white blood cells. It comes from...

Human League Information Society Kraftwerk New Order Pet Shop Boys Soft Cell Sparks Tears for Fears Thompson Twins Tubeway Army Visage VNV Nation Yazoo...

comprehension of DNA repair at the molecular level in bacterial and mammalian cells. He was the first to isolate a mammalian DNA ligase and to describe a totally...

current go into an electrical device such as a battery or other electrical cell. It can also end in a vacuum, like in a cathode ray tube. In this case, the...

deals with cytology: cell structure and function. It includes the study of chromosomes, chromosome bands, karyotypes, and cell division, especially meiosis...

chemicals, textile processing, and the electrolyte of the Leclanche cell. Cells containing this chemical are marketed as "Super Heavy Duty" or "Extra...

pioneering American zoologist and cell biologist. He wrote one of the most famous textbooks in the history of modern biology, The Cell. Wilson graduated from Yale...

living cells, these subjects joined together: genetics, physics, chemistry, cytology. When they joined up, the field they formed was called cell biology...

host cells; everything it does is to benefit its fitness and increase the number of its offspring. The viral life cycle is dependent on a host cell. A virus...

recombination. Cell 33:25–35 Lundblad V. and Szostak J.W. 1989. A mutant with a defect in telomere elongation leads to senescence in yeast. Cell 57:633–643...

are usually classified by looking at the cell walls. There are three different main kinds: Parenchyma cells have thin primary walls and usually remain...

carcinoma. Most laryngeal cancers are squamous cell carcinomas, reflecting their origin from the squamous cells which form the majority of the laryngeal epithelium...

Celles-sur-Ource is a commune of the Aube département in the north-central part of France. This short article about a place or feature in France can be...

whip-like structure that helps some single celled organisms move. It is composed of microtubules. They help propel cells and organisms in a whip-like motion...

Differentiation means how different the cancer cells are from normal cells. Undifferentiated cells are cells that do not have their mature features or functions...

An ergastic substance is a non-protoplasm material that one can find in cells. These are usually products of metabolism. Ergastic substances include crystals...

secondary cell wall development, making the young shoots softer and easier to chew and digest. As shoots grow and age, the cells develop secondary cell walls...

only involves a single organism; it works by division (or splitting) of the cell. Most bacteria reproduce by asexual reproduction. Some organisms can either...

"discoveries concerning genetic regulation of organ development and programmed cell death". He shared the prize with Sydney Brenner and John E. Sulston. He earned...

Photovoltaics (PVs) are arrays of cells containing a solar photovoltaic material that converts solar radiation or energy from the sun into direct current...

one letter above a failing grade. In electronics, D is a standard size dry cell battery. In music, D is a note sometimes called “Re”. In Roman numerals,...

The HeLa cell line is the oldest human cell line used in molecular biology research. Every cell in a cell line has the same genes. Since their discovery...

of brain cells are still used for educational purposes today. Drawing of the neural circuitry of the rodent hippocampus Drawing of the cells of the chick...

A platelet is a cell fragment that circulates in the blood. Platelets are involved in hemostasis through the making of blood clots. A low platelet count...

that control the normal growth and division of cells, can cause normal cells to change into cancer cells. 1990 – Joseph E. Murray and E. Donnall Thomas...

Ovules produce the female reproductive cells which get fertilized during sexual reproduction in seed plants. The word literally means "small egg." The...

class of antigens that cause non-specific activation of T-cells, resulting in polyclonal T-cell activation and massive cytokine release. Tolerogen – A substance...

by using a number of cells. Each cell has one of many possible states. With each "turn" or iteration the state of the current cell is determined by two...

tissues as an electrolytic cell, since these contain water and salts (electrolytes). The caustic solution reacts with the cells inside of the follicle, and...

The Mollicutes are a class of bacteria with no bacterial cell wall. Mycoplasma is the best-known genus. They are very small, only about 0.2–0.3 μm in size...

reproduction without sex. In this form of reproduction, a single organism or cell makes a copy of itself. The genes of the original and its copy are the same...

02 inches (0.5 mm) high; inside the cell, the dots are about 0.1 inches (2.5 mm) apart. The space between the dots of two cells is about 0.15 inches (3.75 mm)...

of nerve cells which do a job in the nervous system. Ganglia are basically clusters of nerve cell bodies. They may have thousands of nerve cell bodies working...

in the alveolus than in the red blood cells. Therefore, oxygen leaves the alveolus and enters the red blood cells. When a mammal breathes out, the opposite...

basis of cell were compromising. Standard cell design is a general term for gate array, cell base, embedded array. if standard cell is cell base IC, direction...

RNA interference (RNAi) is a process in living cells. It adjusts (moderates) the activity of their genes. RNAi molecules are a key to gene regulation...

A lead acid battery is a secondary cell, meaning that it is rechargeable. It is very common in cars and trucks. It contains plates of lead and lead(IV)...

sugar-like substance). Glycoproteins are important to recognise immune cells in mammals. Well-known glycoproteins are: antibodies which react with antigens...

sinuses, pharynx, and larynx. 90% of head and neck cancers are squamous cell carcinomas (SCCHN), originating from the mucosal lining (epithelium) of these...

crystallography, the cubic crystal system is a crystal system where the unit cell is in the shape of a cube. This is one of the most common and simplest shapes...

fertilized egg. As a result, the individual has two or more genetically different cell lines derived from a single zygote. Mosaicism may result from: Crossing-over...

Animals with this kind of vision see colors with cone cells in their retina. The three types of cone cell are sensitive to different wavelengths of light....

('repetitive DNA'). During cell division, enzymes that duplicate DNA cannot continue their work all the way to the end of chromosomes. If cells divided without telomeres...

Holozoa is a group of creatures that includes animals, and some single-celled relatives of animals, which excludes fungi. Holozoa is also an old name for...

attaches to a cell, these peplomers can only attach to certain receptors on the cell. They are very important for choosing which cell it attaches to...

react to changes in their environment. The brain is made up of special cells called nerves, which are connected with each other and with other nerves...

in Physiology or Medicine in 1990 for "discoveries concerning organ and cell transplantation in the treatment of human disease". He shared the prize with...

principal storage form of glucose in animal cells. Glycogen is found in the form of granules in the cytosol in many cell types, and plays an important role in...

normal phenotype; Hb+Hbs the heterozygote; and HbsHbs homozygous for sickle cell anaemia. The fitness of these three genotypes varies according to the environment...

adaptations which fit them in their parasitic life. They are all single-celled, they are all parasites of animals, and they all form spores. They have...

born 5 December 2017) are identical macaques that were made through somatic cell nuclear transfer (SCNT), the same way of cloning that made Dolly the sheep...

precise order in which cells in C. elegans divide. In fact, he and his team succeeded in tracing the nematode's entire embryonic cell lineage. Sulston was...

Chromatophores are pigment-containing and light-reflecting cells found in amphibians, fish, reptiles, crustaceans, and cephalopods. They are largely responsible...

into another cell via a viral vector. This is a common tool used by molecular biologists to introduce a foreign gene into a host cell's genome. When bacteriophages...

with his spectroscope. In 1841, Bunsen developed the Bunsen cell, by improving the galvanic cell William Grove had developed in 1839. "Visual elements: Rubidium"...

injected into E. coli cells. It quickly turns the E. coli cell into a T2-producing factory. New phages are released when the cell ruptures. The Hershey–Chase...

of body fuel. When metabolized, they yield large quantities of ATP. Many cell types can use either glucose or fatty acids for this purpose. In particular...

Nuclear DNA is the DNA inside the cell nucleus of eukaryotic cells. This DNA is a double helix, with two strands wound around each other. This double helix...

important in medicine because it is an effective treatment for metastatic renal cell carcinoma and Metastatic melanoma. It can produce up to a 16% response rate...

Lombard physicist known especially for the development of the first electrical cell in 1800. He was born in Como in Lombardy, Italy. Volta worked on the electrophorus...

Human cloning is the creation of a human being, human cell, or human tissue taken from another human. This method is used to make an exact copy of a human...

The bone marrow in the middle of the bigger bones makes our red blood cells. Long bones are hollow, with a central core which is not strong like the...

any virus which copies itself as part of the cell's DNA by reverse transcribing its RNA. Since the cell cannot proofread the step in which RNA is converted...

for the SmackDown! brand, Batista defeated The Undertaker in a Hell in a Cell match to keep his World Heavyweight Championship. Raw's main match saw Randy...

2003 Nobel Prize in Chemistry for "discoveries concerning ion channels in cell membranes." A In 2009, Agre was elected president of the American Association...

Bernal and others is the origin of the cell membrane. By concentrating the chemicals in one place, the cell membrane performs a vital function. What...

Jacob and Monod discovered a fundamental control system in cells. Enzyme levels in all cells is regulated by feedback on transcription. Like his colleague...

subordinate functions of a desktop PC. ]] Palmtop PDA - Personal digital assistant Cell phone Pocket PC Smartphone Tablet computer Smartwatch Bluetooth headset Mobile...

cancer is very rare, and the most common type is papillary transitional cell carcinoma. Ries, LAG; Young, JL; Keel, GE; Eisner, MP; Lin, YD; Horner, M-J...

tasks after leaving the cell. In single-celled organisms, waste products are discharged directly through the surface of the cell. Multicellular organisms...

most common type of movement in eukaryotic cells. It is a crawling type of movement got by pushing out cell cytoplasm in the form of pseudopodia ("false...

move water. Mosses evolved from liverworts.p75 Moss tissue does not have cells that move water. This means that they are non-vascular plants. Water must...

Astrocytes are characteristic star-shaped glial cells in the brain and spinal cord. They are also known collectively as astroglia. The proportion of astrocytes...

computational processes Cell signalling (biology), the system of communication that governs basic cellular activities and coordinates cell actions Signal (biology)...

series of defect experiments in which he took 2 and 4 cell frog embryos and killed half of the cells of each embryo with a hot needle. He reported that they...

An enzyme is a protein molecule in cells which works as a biological catalyst. Enzymes speed up chemical reactions but do not get used while doing so...

of light microscopy. Nature Cell Biology, 2: E151-E152. Harris, Henry 1995. The cells of the body: a history of somatic cell genetics Cold Spring Harbor...

in electroplating and his development of the electrochemical cell, named the Weston cell, for the voltage standard. Weston was a competitor of Thomas...

A chloroplast is a small organelle inside the cells of plants and algae. They absorb light to make sugar in a process called photosynthesis. The sugar...

mTOR is a protein, an enzyme which regulates cell growth, cell division, cell movement, cell survival, protein synthesis, autophagy, and transcription...

transcriptase), which helps to restore telomeres after they are shortened during cell division. As president of Howard Hughes Medical Institute, he promoted science...

Medicine in 1990 with Joseph E. Murray for his help in the development of cell and organ transplantation. He was born on March 15, 1920 in Mart, Texas....

subtropical regions. It is one of the largest single-celled organisms. However, although genuinely a single cell, it has more than one nucleus. Valonia ventricosa...

nest. After each cell in the nest is filled and almost overflowing with spiders and insects, the mud dauber lays an egg in each cell, closes the openings...

protein (TP53) is at low levels in human embryonic stem cells (hESCs). This allows the most important cell division to proceed rapidly. Read AP, Strachan T (1999)...

Fermentation is when a cell uses sugar for energy without using oxygen at the same time. Fermentation is also when oxidation occurs in the absence of oxygen...

delivers the sperm into a woman's vagina. The sperm can fertilize the egg cell in the woman's womb. The fertilized egg may develop into a fetus, which is...

researched the way that telomeres protect the chromosomes in cells. Chromosomes are the part of the cell that carries genetic information. Telomeres are the ends...

species live in the water films around grains of soil. Adults have a fixed cell number. About 700 species have been described. Gastrotrichs are bilaterally...

which is used to produce food. Photosynthesis is the process by which plant cells containing chlorophyll produce food substances (glucose and starch) from...

Mycoplasma is a genus of bacteria. They do not have a cell wall around their cell membrane. They are gram-negative, and need sterols such as cholesterol...

cells, each cell is black (alive) or white (dead). When people are playing the game, they start by making some dead cells alive. Then the alive cells...

system. It is composed of neurons (that is, the cells usually called 'brain cells') and glial cells. By contrast, the white matter is composed of long-range...

Cavalier-Smith, Thomas (2013-05-01). "Early evolution of eukaryote feeding modes, cell structural diversity, and classification of the protozoan phyla Loukozoa...

of most animal embryos. In it, the embryo is dramatically restructured by cell migration. Gastrulation varies in different phyla. It is followed by organogenesis...

blood cells. It is the rapid growth of uncommon white blood cells that build up in the bone marrow and harm the production of normal blood cells. AML is...

Academy of Sciences in 1903. Harris, Henry 1995. The cells of the body: a history of somatic cell genetics. Cold Spring Harbor Laboratory, Plainview N...

definition for: germ. Germ may refer to: Microorganism, especially a pathogen Germ theory of disease Germ cell, an ovum or sperm, or one of its progenitors...

describes a way different cells communicate with each other. Fusomes are simple openings, or pores, in the walls of certain types of cells. These allow certain...

Tracheids are long cells in the xylem of vascular plants. They transport water and mineral salts. Tracheids are one of two types of elements in the xylem...

nervous system. The nervous system is made up of neurons. Other cells, such as glial cells keep the neurons safe and in good condition. The structure of...

well-studied case is that of sickle cell anemia in humans, a hereditary disease that damages red blood cells. Sickle cell anemia is caused by the inheritance...

spleen helps fight infections and keeps the blood cells healthy. The spleen cleans out old blood cells from the blood and recycles them. It helps save the...

can be made longer. You can help Wikipedia by adding to it. It is also seen as a large polysaccharide molecule found in the cell wall of many cells....

of the immune system. Before the B cell can create antibodies, it first needs T helper cells to 'teach' the B cell about details of the incoming invader...

Theme In the Space Capsule Ming's Theme The Ring Football Fight In the Death Cell Execution of Flash The Kiss Arboria Escape from the Swamp Flash to the Rescue...

top of the cage hence the name 'cell'. There is no disqualification and wrestlers are allowed to go outside the cell. The match can be won by pinfall...

Crossing over is a basic concept of genetics and cell biology, often called recombination. It occurs during meiosis. Crossing over is the exchange of chromosome...

processes Phytopathology—Plant diseases Defence against herbivory Plant anatomy—Cell and tissue structure Plant ecology—Role of plants in the environment Plant...

neuron cells. There are many parallels between different neurodegenerative disorders including atypical protein assemblies as well as induced cell death...

of diamond cell (unit cell) 403 pm — width of lithium fluoride cell 500 pm — width of α helix protein 560 pm — width of sodium chloride cell 700 pm — width...

in the Opisthokonta clade. It includes animals, and their close single-celled relatives. These relatives are more closely related to animals than they...

the same number of cells. Cell number is a useful identifying character. The organism's structure is simple: a single axial cell is surrounded by a jacket...

flammable fuel like gasoline or diesel) is added to some IEDs. Other IEDs use cell phones, garage door openers, or toy controllers are also used to blow up...

substance used in a primary cell to prevent buildup of hydrogen gas bubbles. This would interfere with the working of the cell. Manganese dioxide is a widely...

transmission and so has a "pre-" prefix. The synaptic membrane of the post-synaptic cell is usually on the dendrite of the next neuron. This absorbs neurotransmitters...

nearby tissue. It is a cluster of cells that has grouped together to form a sac however an aspect of a cyst is that the cells forming the "shell" of such a...

testicles into a woman's body so that a sperm cell can join together with the woman's ovum (egg cell) to form a new cell that will grow into a baby. The process...

his "discovery of the major histocompatibility complex genes which encode cell surface protein molecules important for the immune system's distinction between...

or part of one A tool or part of one An information appliance, such as a cell phone Device implying computer hardware A peripheral device attached to a...

The resting potential of a cell is the membrane potential that would be maintained if there were no action potentials, synaptic potentials, or other active...

tube with a plasmid, or other DNA construct, and proceeding to cell culture. Individual cells are genetically transformed with the DNA construct. Often the...

(because of impaired T-cell and NK-cell immune surveillance).   Hematopoietic cell transplant replaces the patient’s defective immune cells and hematopoietic...

event of this name until 2016. Hell in a Cell took over the October PPV slot in 2009. "WWE presents Hell in a Cell". World Wrestling Entertainment. Archived...

body. Cancer cells spread from the original site to other places in the body by traveling through the bloodstream. When the cancer cells stick to a new...

In molecular biology, transformation is the genetic alteration of a cell by the direct uptake and expression of DNA from its surroundings. Transformation...

reticulum and near the cell nucleus. The cisternae play an important role in the packaging, modification, and transport in the cell. They help the transport...

thymus is where T cells develop from hematopoietic (blood-forming) cells. In addition, this is where the T cells get tolerant to cells of the body. The...

Dead Cell, voiced by John Cygan. Fortune (a.k.a. "Queen") one of the members for Dead Cell, voiced by Maula Gale. Vamp one of the members for Dead Cell, voiced...

ornamentation, most common in 17th century English music Cell division, the process in which biological cells multiply Continental divide, the geographical term...

gene introduced into a cell along with a gene insert. What this means is, the experimenter can tell the right gene is in the cell because the marker can...

Puromycin is used in cell biology as a selective agent in cell culture systems. It is toxic to prokaryotic and eukaryotic cells. Puromycin is an example...

resources that are not renewable, such as fossil fuels. In principle, fuel cells are electrochemical devices similar to batteries that convert the chemical...

The Hyundai Nexo is a Hydrogen Fuel cell Crossover SUV made by Hyundai since 2018 it replaced the Hyundai Tucson FCEV it was also named after Nexø a city...

The Archaea (or Archea) are a group of single-celled organisms. The name comes from Greek αρχαία, "old ones". They are a major division of living organisms...

(January 10, 1967 – October 29, 2020) was an Austrian-American molecular and cell biologist. She was the Kathleen and Curtis Marble Professor in Cancer Research...

a message to other cells in the body. This insulin tells the cells to take up glucose from the blood. The glucose is used by cells for energy. Extra glucose...

find the reduction potential or voltage of an electrochemical cell. It is widely used in cell physiology and neurobiology. It is named after Walther Nernst...

Erythropoietin acts on the bone marrow so that it makes more red blood cells. It is made to treat some kinds of anemia. Anemia can happen in kidney failure...

substances through the skin or other boundaries such as the intestine or cell membrane. Pharmacology: release of drugs into the blood. Physics: receiving...

is the number and appearance of chromosomes in the nucleus of a eukaryote cell. The term is also used of the complete set of chromosomes in a species, or...

the body and lungs. Left Ventricle - Cell Centered Database Photo of dissection at uc.edu Left Ventricle – Cell Centered Database SUNY Labs 20:05-0102...

is the DNA genome of a plastid.p341 They are like tiny machines inside cells: each makes or stores important chemicals used by the plant. Examples of...

makes spores. So they are both single-celled and multicellular. That is not all: the multicellular form loses its cell walls, and becomes a syncytium. This...

a lasso-like string that is fired at prey. It wraps around the prey. The cell which produces the cnida is variously called a cnidocyte, cnidoblast, or...

duct cancer is a form of cancer that is formed by mutated epithelial cells (or cells showing characteristics of epithelial differentiation) that begins...

smaller molecules. Biomolecules are used in biological processes such as cell division, morphogenesis, or development. Just four elements—oxygen, carbon...

showed how malignant tumors are formed from changes to the normal genes of a cell. These changes can be produced by viruses, by radiation, or by exposure to...

of three species in the genus Chlamydia. It cannot grow outside a living cell. In this respect it resembles a virus, but it is actually a very sophisticated...

to grow stem cells into organ-like structures. In 2012, Sasai became the first stem cell researcher to grow an optic cup from human cells. On August 5...

cytoplasmic matrix, or groundplasm) is the internal fluid of the cell, and a part of cell metabolism occurs here. Proteins within the cytosol play an important...

(like a sheet of paper) that has many cells in a grid of rows and columns. Users can put words or numbers into the cells, to make headings and store information...

Aneuploidy is a condition where the nucleus of a cell has one or a few chromosomes more or less than the usual number in the species. It is a common cause...

other connective tissues, cartilage does not contain blood vessels. The cells are supplied by diffusion. So, compared to other connective tissues, cartilage...

and in the endoplasmic reticulum. In bacteria, translation happens in the cell cytoplasm: they have no nucleus. Ribosomes are made of a small part and a...

event was aired yearly from 1999 to 2008 and was succeeded by WWE Hell in a Cell in 2009. It was bought back in 2016 and 2017 as a main roster event, and...

(from hemoglobin) changes to a chemical called bilirubin after red blood cell death. Bilirubin causes the yellow coloring of the skin. Jaundice is common...

University of Cambridge, England. All heredity is controlled by genes. For the cells to make use of the information in the genes, a copy of part of the gene...

myocardium. The other types of muscle are the skeletal and smooth muscle. The cells that make up cardiac muscle have one (74%) or two (24.5%) nuclei. The myocardium...

called vesicles. When these vesciles come into contact with the neuron's cell membrane, it opens. This releases the neurotransmitters into the synaptic...

Many types have one cell and are very small or microscopic (including plankton and other microalgae); many others have many cells; some of these are very...

humans. They discovered brain cells that allow animals to move from one place to another. These are called grid cells, and they fire when the rats pass...

dance-pop and R&B song that samples the 1981 song "Tainted Love" by Soft Cell. It was released on February 14, 2006 off of the album A Girl like Me and...

count. The cells that circulate in the bloodstream are generally divided into three types: white blood cells (leukocytes), red blood cells (erythrocytes)...

A sarcoma is a cancer that comes from transformed cells of mesenchymal (connective tissue) origin. Connective tissue is a term that includes bone, cartilage...

single celled organisms. As in many freshwater protozoans, Stentor has a contractile vacuole. Because the concentration of salt inside the cell and in...

species is having a thicker cell wall than many other bacteria, which is to maintain the shape of the plasma membrane. The cell wall is waxy and rich in...

brain. The retina has two types of cells: rod cells and cone cells. They work in different types of light. Rod cells receive the images that the eye sees...

histocompatibility complex, or MHC, is a molecule on the outside of immune cells such as white blood cells. It is coded for by a large gene family in all vertebrates...

conjugation, a process in which a bacterial cell transfers genetic material to another cell by cell-to-cell contact. A gene transfer agent or 'GTA' is...

chromosomes, each cell can only have one X chromosome active. During early development, a process called X-inactivation occurs. In each cell one of the X chromosomes...

"Enzyme-Linked Immunosorbent Spot Assay". It is a laboratory technique for detecting cells that make (or "secrete") various substances. These substances include specific...

that is used in the treatment of Metastatic Renal cell carcinoma, Metastatic breast cancer, Non-small cell lung cancer, and is also approved in the treatment...

Parkinson's disease, the cells that make dopamine in a part of the brain die. Dopamine cells send information to other cells which makes us do the actions...

by methylation may last for the rest of the cell's life, and for many generations of cells through cell divisions. However, there is no change in the...

sent by black cells A and C should make cell O lighter; in Figure 2.2 lateral inhibition sent by white cells A and C should make cell O darker. Rules...

single-cells, other species form colonies or long filaments. Algae Brown algae Euglena, a protist that includes a green alga within its cells Seaweed...

plasma membrane of prokaryotes. When the SRP-ribosome complex binds to a cell membrane receptor, SRP releases the ribosome and drifts away. The ribosome...

tend to move into the lung. It happens in cell biology, where small molecules simply diffuse through the cell membrane, but larger molecules only get through...