Which occurs FIRST as a result of ATP binding to myosin?
A)Cross-bridge heads are cocked into an "energized" state.
B)Actin dissociates from myosin.
C)Ca²⁺ is released from the sarcoplasmic reticulum.
D)Actin binds to myosin.
E)Cross-bridges rotate,sliding past the thin filament.

Question

Quizplus · Accepted Answer

ATP binding to myosin causes actin to dissociate from myosin, breaking the cross-bridge, which is the first step in the cycle of muscle contraction.

Which Occurs FIRST as a Result of ATP Binding to Myosin