question_answer

The stage of Omithine cycle at which arginase enzyme is used

A)  Omithine\[\to \] citruUine

B)  arginine \[\to \]Omithine

C)  citrulline \[\to \] arginosuccinic acid

D)  Omithine \[\to \] urea

Correct Answer: B

Solution :

 Urea is synthesised in liver through Ornithine cycle, which was discovered by Hans Krebs and  Kurt Henseliet (1932). The enzyme arginase cleaves arginine to form urea and Ornithine. The urea is transported to kidneys for excretion.