What is the chemical change in a drug called that renders it active or inactive?

Question

Quizplus · Accepted Answer

Metabolism is the chemical change in a drug that renders it active or inactive.Absorption is the receptor-coupled or diffusional uptake of drug into the tissue.Distribution is the theoretic space (tissue)or body compartment into which a free form of a drug distributes.Excretion is the removal of a drug through an eliminating organ,often the kidneys; some drugs are excreted in bile or feces,in saliva,or through the lungs.

What Is the Chemical Change in a Drug Called That