The enzyme ________ is one of the most abundant in liver mitochondria and catalyzes the synthesis of the molecule shown below.

Question

Quizplus · Accepted Answer

The molecule shown in the image provided is carbamoyl phosphate, which is synthesized by the enzyme carbamoyl phosphate synthetase I (CPS I). CPS I is indeed one of the most abundant enzymes in liver mitochondria. Arginase catalyzes the conversion of arginine to ornithine and urea, and is not involved in carbamoyl phosphate synthesis. 4-α-carbinolamine dehydratase is involved in the breakdown of amino acids, and transaminase catalyzes the transfer of amino groups between molecules. Neither of these enzymes catalyzes the synthesis of carbamoyl phosphate.

The Enzyme ________ Is One of the Most Abundant in Liver