Fermentation

[MedPR]

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I thought fermentation had a net 2ATP as products?

This says 0ATP.

http://forums.studentdoctor.net/showthread.php?t=222465

 

[Dasypus]

That 2 ATP is from the glycolysis step. Fermentation doesn't yield ATP on its own. Rather, it's a way of turning NADH back into NAD+ so that more glucose can undergo glycolysis.

So in a way, each fermentation allows for 2 ATP, since it generates enough NAD+ for the cell to be able to generate them from glucose. But allow isn't the same as net produce.

 

[MedPR]

That 2 ATP is from the glycolysis step. Fermentation doesn't yield ATP on its own. Rather, it's a way of turning NADH back into NAD+ so that more glucose can undergo glycolysis.

So in a way, each fermentation allows for 2 ATP, since it generates enough NAD+ for the cell to be able to generate them from glucose. But allow isn't the same as net produce.

Ok, but since glycolysis is part of the fermentation process, fermentation does yield 2 net ATP. It's just not technically correct to say that post-glycolysis fermentation yields 2 net ATP.

 

[Dasypus]

I don't think it's usual to say that glycolysis is part of the fermentation process, since fermentation starts with pyruvate.

 

[mcloaf]

I don't think it's usual to say that glycolysis is part of the fermentation process, since fermentation starts with pyruvate.

Yes. Glycolysis is not part of fermentation. You need to have it for fermentation, but it is considered a separate process, especially as it usually feeds into the krebs cycle anyway.

 

[chiddler]

i did not know that.