問題詳情
17.Fatty acids cannot be converted to glucose because
(A)they lack sufficient energy.
(B)as acetyl-CoA they enter the citric acid cycle and can never reform pyruvate.
(C)acetyl-CoA can be synthesized only from amino acid skeletons, not fatty acid skeletons.
(D)they enter the citric acid cycle as propionyl-CoA.
參考答案
答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
用户評論
【生物生理生化-認同按讚】評論
因為pyruvate dehydrogenase為不可逆反應,所以acetyl-CoA無法形成pyruvate 答案B