Jamming a lock such that the key will no longer open it is essentially what a drug _____ does at the receptor.
A)blocker
B)depressant
C)agonist
D)antagonist

Question

Quizplus · Accepted Answer

An antagonist binds to a receptor and blocks the binding of an agonist, effectively "jamming" the lock so that the normal ligand or neurotransmitter can no longer activate it. This is analogous to jamming a physical lock so that the key will no longer work. Blockers and depressants do not necessarily prevent activation of a receptor, and agonists activate rather than block receptors.

Jamming a Lock Such That the Key Will No Longer