When myosin moves along the actin,it goes through cycles of binding and releasing (duty cycle).How does myosin keep from losing its place on the actin when it releases?
A)The time of the duty cycle is large (.99)so that it is only unattached a short time.
B)The myosin is still attracted to the actin by weak electrostatic forces that prevent it from moving too far away during release.
C)The myosin is attached to the actin by another protein that it uses as a safety line to prevent it from slipping too far back.
D)The myosin is arranged in dimers so that when one releases,the other is bound.

Question

Quizplus · Accepted Answer

The myosin operates in dimers, meaning that while one head of the myosin molecule releases from the actin filament to move forward, the other head remains attached, ensuring continuous contact and preventing the myosin from losing its place on the actin. This dimeric arrangement allows for a smooth and continuous movement along the actin filament.

When Myosin Moves Along the Actin,it Goes Through Cycles of Binding