Dictionary » E » Electron acceptor

Electron acceptor

Definition

noun

A molecule that receives or accepts electrons from another molecule during a redox reaction.


Supplement

An electron acceptor is an oxidizing agent and is itself reduced during the process of redox reaction.

Examples of acceptors include oxygen, nitrate, iron (III), manganese (IV), sulfate, carbon dioxide, etc.


Synonym: oxidant, oxidizing agent.

See also: redox reaction, electron transport chain.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


ETC - purpose of having different dehydrogenases?

... that NDH-1 is a coupling site (so pumps out protons while transferring electrons) while NDH-2 is not; will not pump out any protons. As a result ... thought e's were just being passed from NADH to the final e' acceptor. Is the benefit of having an NDH-2 to avoid the potential loss of ...

See entire post
by keetner
Sat Dec 15, 2012 2:28 am
 
Forum: Molecular Biology
Topic: ETC - purpose of having different dehydrogenases?
Replies: 1
Views: 2419

Re:

... the same direction. The factor that has to be clarified is the outside electron acceptor necessary when talking about respiration. In cells, cellular respiration refers to ...

See entire post
by daniel.kurz
Fri Nov 18, 2011 3:07 pm
 
Forum: Cell Biology
Topic: Mitochondrial energy pathways
Replies: 9
Views: 6478

enzyme activity, please help

... the cytkinin oxidase/dehydrogenase may be measured by decoloration of electron acceptor DCPIP ;)

See entire post
by JackBean
Thu Nov 18, 2010 6:50 am
 
Forum: Cell Biology
Topic: enzyme activity, please help
Replies: 6
Views: 8234

Biochemistry

I have two true and false questions: 1) Electron from the reductant of a redox couple can transfer exergonically to the oxidized ... I think: At first I thought it is true, because from the equation: delta E = E(acceptor) - E(donar), you will get a positive value. But then... how can you transfer ...

See entire post
by Tanpopo
Sun Nov 07, 2010 6:08 am
 
Forum: Cell Biology
Topic: Biochemistry
Replies: 1
Views: 3401

Re: Chloroplast

... redox reagent is standing in for NADPH/NADP+. Normally thylakoid electron transport sets up an H+ gradient that spills back through an ATPase ... increase the rate of hydrogen ion transport if there is enough electron acceptor available to soak up the electrons from the thylakoid electron transport ...

See entire post
by jonmoulton
Fri Sep 17, 2010 9:31 pm
 
Forum: Molecular Biology
Topic: Chloroplast
Replies: 2
Views: 3776
View all matching forum results

This page was last modified 23:08, 27 November 2008. This page has been accessed 14,464 times. 
What links here | Related changes | Permanent link