In muscle contraction, the breaking of the cross-bridge between actin and myosin is caused by ____.
A)hydrolysis of ATP into ADP plus Pi
B)formation of ATP from ADP and Pi
C)release of Pi from the myosin head
D)binding of a new ATP to the myosin head
E)return of myosin to a high-energy state

Question

Quizplus · Accepted Answer

The binding of a new ATP molecule to the myosin head causes the cross-bridge between actin and myosin to break, allowing the myosin head to detach from the actin filament.

In Muscle Contraction, the Breaking of the Cross-Bridge Between Actin