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Terminal electron acceptor



A compound that receives or accepts an electron during oxidation of carbon source, e.g. during cellular respiration or photosynthesis.


Organisms obtain energy by transferring electrons from an electron donor to an electron acceptor. In the electron transport chain, the electron acceptor is reduced and the electron donor is oxidized. In cellular respiration under aerobic conditions oxygen is the terminal electron acceptor.

See also: electron acceptor, redox reaction.

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Cellular respiration question

... respiration as when oxygen is used as a terminal electron acceptor. What I'm wondering is that can oxygenic photophosphorylation, ...

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by maccha
Sun Dec 13, 2009 5:40 am
Forum: Cell Biology
Topic: Cellular respiration question
Replies: 5
Views: 3036

Re: aerobic metabolism

jwalin has the key to understanding this. The electrons running through the mitochondrial membrane during chemiosmosis need a terminal electron acceptor which is very stable. Oxygen provides a stable resting ...

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by jonmoulton
Mon Nov 23, 2009 4:06 pm
Forum: Molecular Biology
Topic: aerobic metabolism
Replies: 5
Views: 3588

Metabolic Pathways involving ATP energy

... ADP and GTP to forum ATP and GDP. Also, the electron transport chain uses ADP and P to form ... and FADH2. Also, I think the final electron acceptor is oxygen so I think it is all of these. ... received from NADH and FADH2. b. Usually the terminal electron acceptor is oxygen. c. Most of ...

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by fifa
Wed Sep 23, 2009 5:05 am
Forum: General Discussion
Topic: Metabolic Pathways involving ATP energy
Replies: 4
Views: 9168

Re: Modern mitochondria

... usually found in anaerobes - and use oxygen as terminal electron acceptor.

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by JorgeLobo
Fri Feb 27, 2009 12:42 pm
Forum: Microbiology
Topic: Modern mitochondria
Replies: 12
Views: 12655


... I believe an electron donor on photosynthesis is H2O. Then what would be the terminal e- acceptor for photosynthesis? Is it "electron transport chain"??? ...

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by binoo
Sun Apr 09, 2006 3:57 am
Forum: Cell Biology
Topic: Who's correct? My professor or Mr. Mistery???
Replies: 8
Views: 3522
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