Question

The researchers' experimental hypothesis was that changes in actin and myosin overlap would alter the number of myosin cross- bridges that could form within a sarcomere, and specifically that Primer Section Key Terms OA. increases in overlap favor more cross-bridges to form, increasing muscle force. muscle force. effect on muscle force. fiber) lengths. B. increases in overlap disrupt cross-bridge formation, reducing C. differences in overlap and cross-bridge formation have little D. overlap is minimal at intermediate sarcomere (and muscle E. None of the other

Answer 1

Answer:

The researchers' experimental hypothesis was that changes in actin and myosin overlap would alter the number of myosin cross- bridges that could form within a sarcomere, and specifically that (Primer Section Key Terms O)

A. Increases in overlap favor more cross-bridges to form, increasing muscle force. muscle force. effect on muscle force. fiber) lengths.

Explanation:

Physiologists Alfred Gordon and Fred Julian and Andew Huxley investigated on the strianed muscle´s contraction properties, to demonstrate the way the muscle lenght is affected by changes in overlap between myocin and actin causing the number of cross-bridges increase , increasing muscle´s force as well.

No cross-bridge disruption is caused, nor litlle differences or minimal overlap so B, C and D options are not correct.