Author Question: Active sites become exposed when calcium ions bind to A) tropomyosin. B) actin. C) myosin. D) ... (Read 149 times)

lunatika · **on:** Feb 28, 2019

Active sites become exposed when calcium ions bind to
A) tropomyosin.
B) actin.
C) myosin.
D) troponin.
E) calcium channels.

Question 2

Communication between axons and muscle fibers occurs at specialized synapses called
A) nervous units.
B) synaptic terminals.
C) motor end plates.
D) motor units.
E) neuromuscular junctions.