Describe how acetylcoenzyme A is formed in the link reaction.

The link reaction occurs in the mitochondrial matrix. In the first step, carbon dioxide and hydrogen are removed from two pyruvate molecules, producing two acetyl groups. The hydrogen removed is transferred to NAD, reducing it. In the second step, coenzyme A combines with the acetyl group to form acetyl CoA.

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Answered by Alessandra P. Biology tutor

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