Protein Catabolism Regulation

Biochemistry · Learn by Concept

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Biochemistry › Protein Catabolism Regulation

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Which enzyme catalyzes the rate-limiting step of the urea cycle?

Carbamoyl phosphate synthetase

CORRECT

Carbamoyl phosphate dehydrogenase

0

Argininosuccinate lyase

0

Ornithine transcarbamylase

0

Explanation

Carbamoyl phosphate synthetase is the rate-limiting step of the urea cycle. It is the first step of the urea cycle and occurs exclusive in the mitochondria of hepatic and renal cells.

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