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In living beings ammonia is converted in...

In living beings ammonia is converted into urea through

A

ornithine cycle

B

citrulline cycle

C

fumarine cycle

D

arginine cycle

Text Solution

Verified by Experts

The correct Answer is:
A
Ornithine combines with one molecule of `NH_(3)andCO_(2)` to produce citrulline. Citrulline combines with another molecule of `NH_(3)` to form arginine. Arginnine is broken down into urea and ornithine which repeats the cycle. This is called Ornithine cycle or urea cycle of Krebs-Henseleit cycle.
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