Question

Drugs that block the binding site of an enzyme form a substrate are called ______

(a) inhibitors

(b) poisons

(c) messengers

(d) receptors

The question was asked in my homework.

My question is based upon Drug-Target Interaction topic in section Chemistry in Everyday Life of Chemistry – Class 12

Answer 1

Right answer is (a) inhibitors

To explain I would say: Drugs that either prevent the enzyme from holding the substrate or prevent it from providing functional groups that attack the substrate, are called enzyme inhibitors. These inhibit the catalytic activity of enzymes.