試題詳解

33. Which of the following characteristics best describes the urea cycle?
(A) All of the enzymes are localized in the cytosol of hepatocytes.
(B) The enzymes are present in high concentration in the perivenous hepatocytes.
(C) Arginine is the end product of the urea cycle.
(D) The cleavage of argininosuccinate releases fumarate.
(E) Asparagine is a substrate in the urea cycle.