One turn of the Krebs cycle, starting from acetyl CoA, directly yields
- A. 36 ATP
- B. 2 ATP and 2 CO2
- C. 6 NADH
- D. 1 ATP, 3 NADH, 1 FADH2 and 2 CO2
Explanation
Per acetyl group the cycle turns out one ATP by substrate level phosphorylation, three reduced NAD, one reduced FAD and two CO2. Since each glucose supplies two acetyl groups, these figures double per glucose, a step examiners often expect you to make.
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