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.*) List 3 events that require the use of ATP in excitation-contraction coupling:

.*) List 3 events that require the use of ATP in excitation-contraction coupling:

Science   Anatomy-And-Physiology   
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Answer #1

Excitation-contraction coupling is the process by which electrical stimuls triggers the release of calcium from sarcoplasmic reticulum , which initiates the mechanism of muscle contraction by shortening of sarcomere.

Events that requires the use of ATP in excitation-contraction coupling includes

1 Hydrolysis of ATP by ATPase activates the myosin head so that, it can bind to actin and rotate

2.Binding of ATP to myosin causes detachment of myosin from actin after power stroke.

3. ATP powers the pumps that transport calcium ions from the cytosol back into the sarcoplasmic reticulum.

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