The effect of acetylcholine can be stimulating or inhibiting. Which of the following gives the best explanation for why this is so?
A) Acetylcholine has a "dose effect." Larger doses are stimulating while small doses inhibit.
B) Postsynaptic cells have a dynamic and changing metabolism and respond differently at different times.
C) Acetylcholine has many different forms.
D) Different postsynaptic cells will have different receptors.

Question

Quizplus · Accepted Answer

Different postsynaptic cells will have different receptors, which can result in different effects of acetylcholine depending on the receptor type and the downstream signaling pathways that are activated.

The Effect of Acetylcholine Can Be Stimulating or Inhibiting