The movement of muscle is due to the
A) polymerization and depolymerization of tubulin.
B) making and breaking of cross-bridges between actin and myosin.
C) contractions of microtubules.
D) changes in conformation of dynein molecules.
E) use of ATP by spokes of the axoneme to contract.

Question

Quizplus · Accepted Answer

Muscle movement is primarily due to the interaction between two proteins, actin and myosin, which make and break cross-bridges that produce muscle contractions.

The Movement of Muscle Is Due to the