Biology
Medium
Question
Which of the following step occurs immediately after binding of Ca2+ with troponin molecule during muscle contraction.
A
Binding sites of actin get attached to the myosin head.
B
Troponin uncovers the actin binding sites.
C
Tropomyosin gets removed from the binding sites of actin filaments.
✓ Official correct answer
D
Ca2+ goes back inside sarcoplasmic reticulum.
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A
Binding sites of actin get attached to the myosin head.
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B
Troponin uncovers the actin binding sites.
No member explanations yet for this option.
C
Tropomyosin gets removed from the binding sites of actin filaments.
No member explanations yet for this option.
D
Ca2+ goes back inside sarcoplasmic reticulum.
No member explanations yet for this option.