Author Question: Which of the following is not true of acetylcholine? A) It binds to receptor membrane channels. B) ... (Read 109 times)

EY67 · **on:** Feb 28, 2019

Which of the following is not true of acetylcholine?
A) It binds to receptor membrane channels.
B) It diffuses across the synaptic cleft.
C) It is stored in the neuron in vesicles.
D) It enters the muscle fiber to release calcium form the sarcoplasmic reticulum.
E) It is digested by acetylcholinesteras e.

Question 2

The role of acetylcholinesteras e is to
A) bind to ligand gated sodium channels.
B) activate acetylcholine.
C) release acetylcholine into the synaptic cleft.
D) transport acetylcholine across the synaptic cleft.
E) break down acetylcholine into acetate and choline components.