Multiple Choice
The binding of calcium to the troponin complex
A) disrupts cross-bridges,allowing filaments to slide past each other.
B) allows tropomyosin to bind actin.
C) opens ion channels,allowing sodium to rush into the muscle cells.
D) causes tropomyosin to shift position,exposing myosin bind sites on actin.
Correct Answer:
Verified
Correct Answer:
Verified
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