Question

which of the following describes a drug target?
a. the molecule to which a drug binds
b. an environmental condition that is controlled
c. a small pill used for archery practice
d. a test tube holding a buffered solution

Explanation:

A drug target is a specific molecule (often a protein like an enzyme or receptor) in the body. Drugs bind to these targets to exert their effects. Option B is about environmental conditions (not relevant to drug - target concept). Option C is a wrong description (pill for archery has nothing to do with drugs). Option D is about a test - tube (not a biological molecule that drugs act on). So, the correct description of a drug target is the molecule to which a drug binds.

Answer:

A. The molecule to which a drug binds