what molecules determine whether pyruvic acid will undergo fermentation or be in the krebs cycle?

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what molecules determine whether pyruvic acid will undergo fermentation or be in the krebs cycle?

2007-03-08 11:45:26 · 2 answers · asked by : ) 2 in Science & Mathematics ➔ Biology

2 answers

oxygen determines this ...

With oxygen - Krebs
Without oxygen - fermentation

2007-03-08 11:48:27 · answer #1 · answered by ecolink 7 · 0⤊ 0⤋

I believe fermentation occurs in the absence of oxygen whereas when O2 is present, the Krebs cycle proceeds...but it's been a long time since biochem so that might not be correct.

2007-03-08 11:50:02 · answer #2 · answered by Lucky 2 · 0⤊ 0⤋