Question

An individual "step" by a myosin head in one cycle pulls the thin filament about 15 nmnm. How many steps must each actin fiber make in one contraction

Answer 1

Answer:

The correct answer is ten steps.

Explanation:

At each individual step, myosin head pulls the actin about 15 nm. For one full contraction to be completed, actin has to take around 10 steps, which is about 150 nm.