explain the contraction of the skeletal muscle, according to the muscle sliding filament theory.

ATP binds to the myosin head   Hydrolysis of ATP causes the head to come to a “cocked” position. Then the head binds to the actin binding site creating a cross-bridge ADP and Pi are released from the myosin, causing the myosin head to pivot and push the actin filament towards the center of the sarcomereThe head attaches to a new ATP to start a new cycle. This further pushes the actin filaments to the center of the sarcomere. Contraction may continue as long as there are calcium ions free.

Answered by Ioanna Z. Biology tutor


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