The citric acid cycle is the very heart of metabolism. Several catabolic pathway

Question

The citric acid cycle is the very heart of metabolism. Several catabolic pathways feed into it -- including, of course, glycolysis.

Which of the following is true about the CAC?

A. Two products from glycolysis (pyruvate and NADH) feed directly into the CAC.

B. In the first step of the CAC, HSCoA is released from one of the reactants.

C. There are 4 oxidation steps in the CAC, all of which use NAD(+) as oxidizing agent.

D. All 8 steps of the CAC have dGo' values that are negative.

E. All of the above are true.

Explanation / Answer

In the citric acid cycle,

C. There are 4 oxidation steps in the CAC, all of which use NAD(+) as oxidizing agent.

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