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Question

Hydrogen of malate is accepted by ?

A
FAD
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B
FMN
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C
COQ
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D
NAD
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Solution

The correct option is C NAD
The cyclic process through which acetyl co-A is completely oxidized and carbon dioxide is released in a stepwise manner is called Krebs cycle. Oxidation(Dehydrogenation -IV) is one of the steps of Krebs cycle, in which Malate is oxidized by removal of hydrogen and oxalo-acetate gets regenerated. The hydrogen removed in this reaction is taken up by the coenzyme NAD to form NADH2. Thus option D is the correct answer.
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