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Question

The first stable compound formed in Krebs cycle is

A
Acetyl Co-A.
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B
Citric acid.
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C
Oxaloacetic acid.
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D
Fumaric acid.
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Solution

The correct option is B Citric acid.
The citric acid cycle, also known as the tricarboxylic acid cycle (TCA cycle) or the Krebs cycle begins with acetyl CoA transferring its two carbon acetyl group to the four carbon acceptor compound (oxalo acetate) to form a six-carbon compound (citrate).

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