Multiple Choice
Overstimulation of postsynaptic receptors may lead to a decrease in responsiveness of the receptors.A fairly brief and transient decrease in receptor responsiveness is known as _____,whereas a more prolonged process in which the actual number of available receptors is diminished is known as _________.
A) down-regulation; desensitization
B) desensitization; up-regulation
C) up-regulation; desensitization
D) down-regulation; autophosphorylation
E) desensitization; down-regulation
Correct Answer:

Verified
Correct Answer:
Verified
Q1: Some drugs affect the function of the
Q2: In contrast to an agonist,a pharmacologic antagonist<br>A)
Q3: A noncompetitive antagonist<br>A) has a more or
Q4: The primary location for receptors that recognize
Q5: A drug that binds readily to available
Q7: Signals from the surface receptor are transduced
Q8: A drug that binds to a receptor
Q9: The ability of a drug to bind
Q10: A drug that fails to evoke a
Q11: The acetylcholine receptor located on the postsynaptic