試題詳解

14. Pyruvate can be converted to glucose via gluconeogenesis or oxidized to acetyl- CoA.
(A) In the conversion of pyruvate to glucose, the first enzyme pyruvate carboxylase is allosterically inhibited by acetyl-CoA.
(B) In the conversion of pyruvate to glucose, the first enzyme pyruvate dehydrogenase is allosterically inhibited by acetyl-CoA.
(C) Pyruvate is oxidized to acetyl-CoA by pyruvate dehydrogenase complex, which is allosterically inhibited by acetyl-CoА.
(D) Pyruvate is oxidized to acetyl-CoA by pyruvate dehydrogenase complex, which is allosterically activated by acetyl-CoA.
(E) None of the above.