Question

Select the option which is incorrect for enzyme catalase

• A. The cofactor present is inorganic and proteinaceous in nature
• B. Haem is the prosthetic group required by the enzyme
• C. The cofactor required for optimal activity must be tightly bound to the apoenzyme
• D. It catalyses breakdown of hydrogen peroxide to water and oxygen

Answer 1

The correct option is A The cofactor present is inorganic and proteinaceous in nature

• Catalase is an enzyme which is commonly found in the body of an organism and protects the body from damage caused by oxidation.
• Catalase is a tetramer of four holding groups called as heme groups, it provides stability to the structure.
• These enzymes requires cofactors to increase the optimal activity of an enzyme, cofactors binds to the inactive enzymes i.e.; apoenzymes and convert into active enzymes.
• The catalase when gets activated breaks the molecule of hydrogen peroxide through oxidation and forms the molecules of water and oxygen.
• The cofactors are non-proteinous structure that may be organic or inorganic in nature.

So, the correct option is 'The cofactor present is inorganic and proteinaceous in nature'.