Question

The citric acid cycle (cac) is activated in the presence of oxygen, but what is the link between the cac and oxygen? pick the one best choice:
a.oxygen is an allosteric activator for citrate synthase.
b. the presence of o2 in the mitochondrial matrix releases co2 into the cytosol.
c.the one substrate-level phosphorylation in the cac can occur in the absence of oxygen.
d. the major product of the cac is nadh, the principle electron donor to the o2 , the last electron acceptor in the electron-transport system.
e. the major product of the cac is fadh2 , the principle electron donor to the o2 , the last electron acceptor in the electron-transport system.

Answer 1

The answer in this question which is asking about the link between the CAC and oxygen is that  the major product of the cac is nadh, the principle electron donor to the o2 , the last electron acceptor in the electron-transport system. The answer in this question is D.