In muscle contraction,which of the following triggers the power stroke?
A) release of Pi from the myosin head
B) binding of ATP to the myosin head
C) hydrolysis of ATP into ADP and Pi
D) cross-bridge formation between actin and myosin
E) relaxation of the sarcomere

Question

Quizplus · Accepted Answer

The release of inorganic phosphate (Pi) from the myosin head triggers the power stroke, which is the force-generating step in muscle contraction.

In Muscle Contraction,which of the Following Triggers the Power Stroke