Q
Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
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A
A. Binding sites of actin get attached to the myosin head.
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B
B. Troponin uncovers the actin binding sites.
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C
C. Tropomyosin gets removed from the binding sites of actin filaments.
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D
D. Ca2+ goes back inside sarcoplasmic reticulum.
Correct Answer:
C. C. Tropomyosin gets removed from the binding sites of actin filaments.
