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Oxidative phosphorylation

Definition

noun

A metabolic pathway that generates ATP from ADP through phosphorylation that derives the energy from the oxidation of nutrients.


Supplement

Oxidative phosphorylation is an enzymatic process that occurs in both prokaryotes and eukaryotes. In eukaryotes, the process occurs as part of cellular respiration within the mitochondrion. In prokaryotes, it occurs in the cell membrane itself.

This process is a more efficient method to produce ATP (in terms of net ATP yield) than fermentation.

The process however involves oxidation that it produces reactive oxygen species, which contributes to the propagation of free radicals.


See also: phosphorylation, electron transport chain, ATP


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Re: Why is ATP rather than GTP, CTP or TTP the energy currency?

... is kept far from equilibrium by the continual synthesis of ATP through oxidative phosphorylation. Is the ratio of GTP:GDP and therefore the energy released through hydrolysis ...

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by Maus
Tue Feb 03, 2015 6:46 pm
 
Forum: Molecular Biology
Topic: Why is ATP rather than GTP, CTP or TTP the energy currency?
Replies: 6
Views: 9517

Re: Types of phosphorylation ?

Substrate level phosphorylation takes place inside the mitochondria during glycolosis and the Krebs cycle. Oxidative phosphorylation takes place in the membranes of the mitochondria during the electron transport chain. ...

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by cash
Sun Nov 03, 2013 3:55 am
 
Forum: Cell Biology
Topic: Types of phosphorylation ?
Replies: 5
Views: 11533

Difference between CO2 uptake and net evolution of oxygen?

cyclic oxidative phosphorylation

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by JackBean
Wed May 02, 2012 11:09 am
 
Forum: Botany Discussion
Topic: Difference between CO2 uptake and net evolution of oxygen?
Replies: 1
Views: 2621

Question on oxidative phosphorylation?

If lactic acid bacteria interfere with oxidative phosphorylation, how does this inhibit growth/development/colonisation of other bacteria...e.g. in yoghurt? ...

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by ilovebiology77
Mon Feb 27, 2012 10:43 pm
 
Forum: Microbiology
Topic: Question on oxidative phosphorylation?
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Views: 940

Please help!

... but I thought you were referring to it entering "a stage" of oxidative phosphorylation, not primarily the electron transport chain.

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by billyfisher100
Mon Jan 23, 2012 4:53 pm
 
Forum: Cell Biology
Topic: Please help!
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