Which of the following is the key regulated enzyme in urea synthesis?

Question

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Carbamoyl phosphate synthetase I is the key regulated enzyme in urea synthesis as it is the first committed and rate-limiting step in the pathway. Glutamate dehydrogenase converts glutamate to alpha-ketoglutarate and does not directly participate in urea synthesis. Arginase and argininosuccinase are involved in the final steps of the urea cycle and do not regulate the overall process.

Which of the Following Is the Key Regulated Enzyme in Urea