During the power stroke all of the cross bridges on myosin do not stroke in unison when pulling the actin filaments.

Question

Quizplus · Accepted Answer

During the power stroke, not all of the cross bridges on myosin stroke in unison. Only a few cross bridges at a time bind to actin and produce a power stroke, while others remain attached and wait for their turn to produce a power stroke. This allows for smooth and continuous movement of the actin filament.

During the Power Stroke All of the Cross Bridges on Myosin