Caffeine exerts its action by _______ presynaptic adenosine receptors, which _______the amount of neurotransmitter released.
A) blocking; increases
B) blocking; decreases
C) opening; increases
D) opening; decreases

Question

Quizplus · Accepted Answer

Caffeine blocks presynaptic adenosine receptors, which normally inhibit the release of neurotransmitters. By blocking these receptors, caffeine increases the amount of neurotransmitter released.

Caffeine Exerts Its Action by _______ Presynaptic Adenosine Receptors, Which