What is the Contraction of Skeletal Muscles Based On

Question

What is the contraction of skeletal muscles based on?
A) actin filaments coiling up to become shorter
B) myosin cross- bridges binding to actin and undergoing a power stroke
C) myosin filaments coiling up to become shorter
D) actin cross- bridges binding to myosin and undergoing a power stroke
E) actin and myosin filaments both coiling up to become shorter

Accepted Answer

The contraction of skeletal muscles is based on myosin cross-bridges binding to actin and undergoing a power stroke, which causes the actin filaments to slide past the myosin filaments and result in the shortening of the muscle fiber.