Question

Enzymes, vitamins and hormones are common in

• A. Being proteinaceous
• B. Being synthesised in the body organisms
• C. Enhancing oxidative metabolism
• D. Regulating metabolism

Answer 1

Answer: (D)

Regulating metabolism

Feedback inhibition is the process by where the end product terminates the reaction. The accumulation of the end product interferes with the enzymatic activity by changing the shape of its active site. Enzymes and hormones regulate the metabolism by feedback inhibition.

Enzymes are protein in nature and catalyzes the biological reaction without being used up in the chemical reaction. They regulate the chemical reaction by feedback inhibition.

Hormones are the chemical messenger which activates the effector gland and regulate the metabolism by feedback inhibition.

Vitamins acts as a coenzymes which regulates the enzymatic activity and further regulate the metabolism.

So, the correct answer is option D.