Question

Co-factor in enzyme urease is

• A. Ni
• B. Zn
• C. Cu
• D. Mg

Answer 1

Answer: (A)

Ni

A- Enzyme 'urease' use Nickel as co-factor to perform its function.

B- Zinc is the co-factor of about 20 enzymes, for example- alcohol dehydrogenase, carbonic anhydrase etc.

C- Copper as a co-factor is present in the enzyme tyrosinase, superoxide mutase.

D- Magnesium is the co-factor of many enzymes involved in glucose metabolism.

So the correct option is 'Ni'.