問題詳情

77. Which of the following statements about urea cycle are correct?① Urea is the end product of the urea cycle.② Inherited defects in urea cycle cause hyperammonemia.③ The synthesis of fumarate by the urea cycle can be used as a precursor for glucose synthesis.④ The urea cycle begins with the formation of ornithine in mitochondria.⑤ ATP is not consumed in urea cycle.
(A) ②③④
(B) ②③⑤
(C) ①②③
(D) ①④⑤
(E) ③④⑤

參考答案

答案:C
難度:適中0.545455
統計:A(6),B(0),C(2),D(1),E(0)

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