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Excretory Products and Their Elimination

Which enzyme ...

Question

Which enzyme cleaves argininosuccinate to form arginine and fumarate?

A

Argininosuccinase

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B

Succinase

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C

Argininosuccinate synthase

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D

None of the above

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Solution

The correct option is A Argininosuccinase
Urea synthesis is a 5 step cyclic process, with five distinctive enzymes. In the fourth step of the urea cycle, the enzyme arginosuccinase cleaves arginosuccinate to arginine and fumarate.
So, the correct answer is 'Arginosuccinase'.

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