AIIMS 2017 Biology Question Paper for free online practice with solutions

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Question : 13 of 60

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The given figure represents the cross bridge cycle in skeletal muscle. What does the step B in the figure represents ?

Attachment of myosin head to actin forming cross bridge.
Release of phosphate. Myosin changes shape to pull actin.
Attachment of new ATP to myosin head. The cross bridge detaches.
Splitting of ATP into ADP and Pi. Myosin cocks into its high energy conformation.

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