Autotrof

En organisme er autotrof, når den selv producerer komplekse organiske forbindelser udfra simple stoffer som f.eks. kuldioxid og vand.[1]

Ordet autotrof er sammensat af to græske ord: auto, der betyder "selv", og trophein, der betyder "nære". Den direkte betydning af begrebet er altså = selvnærende. Deraf "selvforsynende".

Tidligt i Jordens geologiske historie opstod der autotrofe organismer, som udnyttede den kemiske energi fra iltfattige kulstof- eller svovlforbindelser til at opbygge det nødvendige sukkerstof. De findes endnu i iltfrie eller iltfattige omgivelser, og deres produktionsmetode kaldes kemosyntese.

Senere opstod encellede organismer, cyanobakterier eller blågrønalger, der havde udviklet en ny metode til at skaffe sig stof og energi på, nemlig fotosyntesen. Meget tyder på, at fotosyntesen senere er blevet overført til de grønne planter ved, at de har optaget blågrønne bakterier i sig uden at fordøje dem. Under alle omstændigheder er det tankevækkende, at grønkornene, de organeller, der udfører fotosyntesen, har deres eget DNA.

Referencer

Se også

Kilder

  • Dieter Heinrich, Manfred Hergt (1992). Munksgaards atlas – økologi. København: Munksgaard. ISBN 87-16-10775-6.

Read other articles:

أدريان شيلي   معلومات شخصية الميلاد 24 يونيو 1966[1]  كوينز  الوفاة 1 نوفمبر 2006 (40 سنة) [2][1]  مانهاتن  مواطنة الولايات المتحدة  الحياة العملية المدرسة الأم كلية بوسطن الجامعية للفنون الجميلة  [لغات أخرى]‏  المهنة كاتبة سيناريو،  ومخرجة أفل�...

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article may be too technical for most readers to understand. Please help improve it to make it understandable to non-experts, without removing the technical details. (October 2017) (Learn how and when to remove this template message) This article is written like a personal reflection, personal essay, or argumentative essay that states a...

نادي هبوعيل الخضيرة تأسس عام 1936  الملعب أليانز أرينا  البلد أوغندا  الدوري الدوري الإسرائيلي الممتاز  الموقع الرسمي الموقع الرسمي  تعديل مصدري - تعديل   نادي هبوعيل الخضيرة هو نادي كرة قدم إسرائيلي يلعب في الدوري الإسرائيلي الممتاز،تأسس النادي الأصلي قي عقد...

Brazilian space command Aerospace Operations CommandComando de Operações AeroespaciaisCoat of arms of COMAEActive2017; 6 years ago (2017)[1]Country BrazilTypeAir and space commandPart of Brazilian Air ForceGarrison/HQBrasília, DFNickname(s)COMAEMotto(s)Ascendere Et Delere (Latin for Ascend and Destroy)Military unit The Aerospace Operations Command (Portuguese: Comando de Operações Aeroespaciais - COMAE) is a Brazilian joint air and space command create...

Commandant en chef de la marine russe(ru) Главнокомандующий ВМФ Drapeau du commandant en chef de la marine russe Titulaire actuelAmiral Nikolaï Ievmenovdepuis le 3 mai 2019 Création 1696 (historique) 19 août 1992 (forme actuelle) Mandant Président de la Russie Site internet site officiel modifier  Le commandant en chef de la marine russe est l'autorité de commandement en chef de la marine de la fédération de Russie. Le poste est créé en 1696 peu avant la form...

Cet article est une ébauche concernant la politique. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Manifestation contre les clandestins, l'immigration-invasion et l'islamisation de l'Europe le 8 novembre 2015 à Calais La théorie du complot du génocide blanc est une théorie conspirationniste d'extrême droite associée aux idéologies racialiste, néonazie, identitaire, nationaliste blanche, suprémaciste e...

Katedral Etchmiadzin di Armenia, dianggap Katedral pertama, yang secara tradisional diyakini dibangun pada 301 M (sekarang kebanyakan strukturnya berasal dari 483 M). Arsitektur katedral, basilika dan gereja dikarakteristikkan oleh skala besar bangunan dan mengikuti salah satu tradisi cabang dari bentuk, fungsi dan gaya yang semuanya bermula dari tradisi arsitektural Gereja Perdana yang didirikan pada Konstantinian. Katedral, serta beberapa gereja dan basilika memiliki bentuk struktural kompl...

Mantan Direktur Indosat Mega Media (IM2), Indar Atmanto (kiri) berdiskusi dengan kuasa hukum saat jeda sidang dengan agenda vonis terkait dugaan korupsi pemakaian spektrum 3G. Kasus korupsi Indosat Mega Media (IM2) adalah kasus korupsi jaringan pita frekuensi 3G yang melibatkan Indosat dan anak perusahaannya, IM2 sebagai tersangka.[1] Korupsi tersebut terkait kerjasama penyelenggaraan internet di frekuensi 2.1 giga hertz (Ghz) antara PT Indosat dan IM2. Indar Atmanto, mantan Direktur ...

Dutch politician Faissal BoulakjarMember of the House of RepresentativesIn office31 March 2021 – 5 December 2023Member of the Breda municipal councilIn office27 March 2014[1] – 1 April 2021[2]Succeeded byBart Lauwen Personal detailsBornF. Boulakjar (1979-04-28) 28 April 1979 (age 44)Tifarouine, MoroccoPolitical partyDemocrats 66Children3Alma materSpectrum College Faissal Boulakjar (born 28 April 1979) is a Moroccan-born Dutch politician, who has been...

Indian TV series or program HeenaCreated byRajeev TandonDirected byJaved SayyedStarringsee belowOpening themeAisi Yeh Duniya Kyun Hai by Jagjit SinghCountry of originIndiaNo. of episodes265ProductionRunning time22 minutesOriginal releaseNetworkSony Entertainment TelevisionRelease12 June 1998 (1998-06-12) –11 July 2003 (2003-07-11) Heena is a Hindi TV serial that aired on Sony Entertainment Television. The series began to air from 12 June 1998 and ran for five years, fini...

2008 Czech filmGoat Story - The Old Prague LegendsCzech theatrical release posterDirected byJan TománekWritten byJan Tománek David Sláma Robin PanzerStory byJan TománekDavid SlámaProduced byJan TománekStarringJiří LábusMatěj HádekMahulena BočanováMichal DlouhýPetr PelzerJan PřeučilViktor PreissMiroslav TáborskýKarel HeřmánekPetr NárožnýDalimil KlapkaPavel RímskýOta JirákFilip JevičJustin SvobodaCinematographyJan TománekEdited byAlois FisárekJan TománekMusic byDav...

2014 novel by Brian Herbert and Kevin J. Anderson Mentats of Dune First edition coverAuthorsBrian HerbertKevin J. AndersonAudio read byScott BrickCountryUnited StatesLanguageEnglishSeriesGreat Schools of DuneGenreScience fictionPublisherTor BooksPublication dateMarch 11, 2014Media typePrint (hardcover & paperback)Pages448ISBN978-0-7653-2274-6OCLC66590377Dewey Decimal813.54[1]Preceded bySisterhood of Dune Followed byNavigators of Dune  Mentats of ...

You can help expand this article with text translated from the corresponding article in Danish. (September 2021) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text that appears unreliable or l...

Ernst JäckhErnst Jäckh (kanan), 14 Maret 1909Lahir(1875-02-22)22 Februari 1875Urach, JermanMeninggal17 Agustus 1959(1959-08-17) (umur 84)Kota New York, Amerika SerikatKebangsaanJerman, Inggris, Amerika SerikatNama lainErnest Jackh, Ernest Jaeckh, Ernst JäckhPendidikanPh.D. Filologi, 1902PekerjaanJurnalis, Orientalis, Ilmuwan PolitikTempat kerjaNeckar-Zeitung (Heilbronn), Deutscher Werkbund, Nachrichtenstelle für den Orient, Deutsche Hochschule für Politik, New Commonwealth Inst...

English footballer (born 1995) Joe Rothwell Rothwell with AFC Bournemouth in 2022Personal informationFull name Joseph Matthew Rothwell[1]Date of birth (1995-01-11) 11 January 1995 (age 28)[2]Place of birth Manchester, EnglandHeight 6 ft 1 in (1.85 m)[2]Position(s) Defensive midfielderTeam informationCurrent team AFC BournemouthNumber 8Youth career2001–2013 Manchester UnitedSenior career*Years Team Apps (Gls)2013–2016 Manchester United 0 (0)2015 ...

Place in Andalusia, SpainAguadulcePlaza Ramón y Cajal FlagSealCountrySpainAutonomous communityAndalusiaArea • Total13.69 km2 (5.29 sq mi)Elevation264 m (866 ft)Population (2018)[1] • Total2,026 • Density150/km2 (380/sq mi)Time zoneUTC+1 (CET) • Summer (DST)UTC+2 (CEST)Websitewww.aguadulce.es For the town in Panama, see Aguadulce, Coclé. This article does not cite any sources. Please help improve this ...

Norwegian police officer Reidar HaalandHaaland during his trial in July 1945Born(1919-02-21)21 February 1919Stavanger, NorwayDied17 August 1945(1945-08-17) (aged 26)Akershus Fortress, Oslo, NorwayCause of deathExecution by firing squadCriminal statusExecutedConviction(s)TreasonCriminal penaltyDeath Reidar Haaland (21 February 1919 – 17 August 1945) was a police officer and voluntary frontline soldier for the German forces. He hailed from Stavanger. He was a member of Nasjonal ...

Halaman ini berisi artikel tentang kota Meksiko. Untuk kota Amerika di California, lihat Monterey, California. Untuk Monterrey (disambiguasi), lihat Monterrey (disambiguasi). MonterreyKotaCiudad de MonterreyKota MonterreyKota Monterrey dan area metropolitannya. BenderaLambang kebesaranJulukan: Sultan of the North, The City of the MountainsMotto: Work Tempers the SpiritNegaraMeksikoNegara bagianLeón BaruDidirikan20 September 1596Pemerintahan • Wali kotaMargarita Arellane...

Rapid transit system in UkraineYou can help expand this article with text translated from the corresponding article in Russian. (April 2023) Click [show] for important translation instructions. Machine translation, like DeepL or Google Translate, is a useful starting point for translations, but translators must revise errors as necessary and confirm that the translation is accurate, rather than simply copy-pasting machine-translated text into the English Wikipedia. Do not translate text ...

Эта статья — о дворянском роде. О носителях фамилии см. Каменский. О Каменских польского происхождения см. Каминские Каменские Описание герба: Герб рода графов Каменских, манускрипт, Архив Каменских, Москва, см. текст >>> Том и лист Общего гербовника V, 9 Титу�...