Question

question 15
acetylcholine is:
a source of energy for muscle contraction
a neurotransmitter that stimulates skeletal muscle
a component of thick myofilaments
an ion pump on the postsynaptic membrane
an oxygen - binding protein

Explanation:

Acetylcholine is a neurotransmitter released at the neuromuscular junction to stimulate skeletal - muscle contraction. It is not an energy source for muscle contraction, a component of thick myofilaments, an ion - pump on the postsynaptic membrane, or an oxygen - binding protein.

Answer:

a neurotransmitter that stimulates skeletal muscle