What is the function of troponin in muscle contraction?
A) Troponin slides past myosin, causing muscle shortening.
B) Troponin forms the cross-bridges between actin and myosin.
C) Troponin moves tropomyosin from actin binding sites, allowing myosin to bind to actin.
D) Troponin has no function in muscle contraction.
Correct Answer:
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