Which of the following phenomenon takes place during muscle contraction?
A
Release of 
and its binding to troponin complex
and its binding to troponin complex
B
Closing of actin binding site
C
Repolarisation of sarcoplasmic reticulum
D
H-zone remains unchanged
Text Solution
Verified by ExpertsThe correct answer is:
A
Release of 
(in response to sarcolemma) which in turn binds to troponin.
This exposes the actin binding site and cross bridges are formed leading to contraction of muscles.
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