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Which of the following is the main enzyme in the ornithine cycle?

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in Biology – Class 11 by (272k points)
Which of the following is the main enzyme in the ornithine cycle?

(a) Arginase

(b) Carbamyl phosphatase

(c) Arginosuccinate

(d) Urease

I have been asked this question in examination.

My doubt stems from Urine Formation topic in portion Excretory Products and Elimination of Biology – Class 11

1 Answer

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Correct option is (a) Arginase

For explanation I would say: Arginase is the main enzyme involved in the ornithine cycle which converts arginine into ornithine amino acid. The argininosuccinate enzyme is required to convert argininosuccinic acid to arginine.

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