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The relaxation of skeletal muscle requires ATP. True False

  1. The relaxation of skeletal muscle requires ATP.

    True

    False

Science   Anatomy-And-Physiology   
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Answer #1

Answer :- True

Explanation :- The events in skeletal muscle contraction and relaxation depend on ATP in this three process .

•Hydrolysis of ATP by myosin energizes the cross-bridges, providing the energy for generation of force.

••Binding of ATP to myosin dissociates cross-bridges bound to actin, allowing the bridges to repeat their cycle of activity.
•••Hydrolysis of ATP by the Ca2+-ATPase in the sarcoplasmic reticulum provides the energy for the active transport of calcium ions into the lateral sacs of the reticulum, lowering cytosolic Ca2+ to pre-release levels, which ends the contraction and allows the muscle fiber to relax.....

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