To say that a drug has an affinity for a particular type of receptor is to imply that the drug ____.
A) breaks down neurotransmitter chemicals at that receptor site
B) will always excite the postsynaptic receptor
C) will always inhibit the postsynaptic receptor
D) binds to that receptor

Question

Quizplus · Accepted Answer

When a drug has an affinity for a particular type of receptor, it means the drug binds to that receptor. This binding may result in different effects, such as excitation or inhibition, depending on the drug and the receptor in question. Options A and B are not correct because they only describe a specific type of interaction, whereas affinity can result in a range of effects. Option C is also incorrect because affinity does not necessarily mean inhibition.

To Say That a Drug Has an Affinity for a Particular