The contraction of skeletal muscles is based on ________.
A) actin filaments coiling up to become shorter
B) myosin filaments coiling up to become shorter
C) actin and myosin filaments both coiling up to become shorter
D) actin cross-bridges binding to myosin and undergoing a power stroke
E) myosin cross-bridges binding to actin and undergoing a power stroke
Correct Answer:
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A) smooth
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