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Question

When two molecules of acetyl CoA enter the TCA cycle, net gain at the end of the cycle is

A
2NADH2+2FADH2+1GTP
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B
3NADH2+2FADH2+2GTP
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C
6NADH2+2FADH2+2GTP
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D
3NADH2+1FADH2+4GTP
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Solution

The correct option is C 6NADH2+2FADH2+2GTP
Krebs' cycle produces 2 GTP(or 2ATP) through substrate level phosphorylation, Six molecules of NADH2 and 2molecules of FADH2 for every two molecules of Acetyl CoA oxidised by it.

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