When the myosin heads bind to ATP, they [a] from actin and a…
When the myosin heads bind to ATP, they [a] from actin and are ready for subsequent contraction. The hydrolysis of ATP to [b] and inorganic [c] makes myosin heads “cocked” and binds to actin via [d]-binding sites on the myosin heads. When inorganic [e] is released, the bond between actin and myosin becomes stronger. When [f] is released, the myosin head pivots, generating [g] stroke, pulling [h] filaments towards the center of the [i]. As a result, [j]-discs are pulled towards the center and muscle contracts.
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