Biochemistry Which of the following is a mitochondrial enzyme of Urea Cycle A Arginase B Carbamoyl Phosphate synthetase I C Arginosuccinate lyase D Arginosuccinate synthetase. 💡 Explanation Which of the following is a mitochondrial enzyme of Urea Cycle ✓ Correct Answer: B. Carbamoyl Phosphate synthetase I