Activity of succinic dehydrogenase involves which of the following in TCA cycle?

NAD

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FAD

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GDP

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ATP

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Solution

The correct option is B FAD
Succinate dehydrogenase enzyme catalyzes the oxidation of succinate by removal of its two hydrogen atoms and forms fumarate. The removed hydrogen atoms reduce the FAD into $F A D H_{2}$ that enters mitochondrial electron transport chain. Thus, the correct answer is option B.

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