Multiple Choice
Which statement about slow-twitch and fast-twitch muscles is true?
A) One is smooth muscle and one is skeletal muscle.
B) They have different myosin variants because they express different genes for their myosin molecules.
C) One occurs only in mammals.
D) They typically have similar numbers of mitochondria per cell.
E) Those with low ATPase activity compensate by quickly recycling their actin-myosin bridges.
Correct Answer:
Verified
Correct Answer:
Verified
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