Locomotion and MovementHard

Question

Which state of a living muscle, are the following events associated ?
1. Ca+2 released by sarcoplasmic reticulum
2. Actin complexes with myosin
3. ATPase is activated  
4. Troponin binds Ca+2

Options

A.Relaxed state
B.Muscle at the beginning of contraction
C.Muscle in tetanus
D.Muscle at the end of contraction

Solution

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