Author Question: If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the ... (Read 70 times)

Arii_bell · **on:** Feb 27, 2019

If oxygen is not available to a muscle cell, pyruvic acid is changed to ____ and builds up in the muscle cell.
a. fatty acid

b. phosphocreatine
c. lactic acid

d. glucose

Question 2

As the nerve impulse of an axon reaches the neuromuscular junction, it triggers the release of a neurotransmitter called ____.
a. acetylcholine

b. dopamine

c. epinephrine

d. norepinephrine