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The following reaction occurs in the citric acid cycle. Study the reaction as it is shown here.

The following reaction occurs in the citric acid cycle. Study the reaction as it is shown here. Correct Answer The reaction is an oxidation reaction.

(C) Oxidation is the loss of electrons or of hydrogen. You can see that hydrogen has been lost by the succinate to form fumacate. If this is part of the citric acid cycle, then pyruvate is the starting point of this reaction, not the product. The citric acid cycle produces CO2 and ATP. Feedback mechanisms are complex. This is certainly not one. The stem of the question states that this is part of the citric acid cycle, which occurs in the inner matrix of the mitochondria, not the cristae membrane.

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