Question 1
The most immediate source of energy for reformation of ATP in muscle cells is
◦ aerobic respiration.
◦ mitochondrial pathways.
◦ electron transport phosphorylation.
◦ creatine phosphate.
◦ anaerobic fermentation.
Question 2
The neurotransmitter used for muscle contraction is
◦ serotonin.
◦ dopamine.
◦ GABA.
◦ acetylcholine.
◦ aspartate.