Which substance is not involved in the production of urea from NH₄⁺ via the urea cycle?

Name: Which substance is not involved in the production of urea from NH 4 + via the urea cycle?
Brand: Quizplus
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Question

Quizplus · Accepted Answer

Malate is not involved in the urea cycle. The urea cycle starts with the conversion of NH4+ and HCO3- to carbamoyl phosphate, which is catalyzed by the enzyme carbamoyl phosphate synthetase I (CPSI). Aspartate, ATP, and ornithine are all involved in subsequent steps of the cycle.

Which Substance Is Not Involved in the Production of Urea