Hypothetically, if a muscle were stretched to the point where thick and thin filaments no longer overlapped__________, .
A) cross bridge attachment would be optimum because of all the free binding sites on actin
B) no muscle tension could be generated
C) ATP consumption would increase because the sarcomere is "trying" to contract
D) maximum force production would result because the muscle has a maximum range of travel

Question

Quizplus · Accepted Answer

If the thick and thin filaments no longer overlapped, there would be no way for the myosin heads to attach to the actin and generate muscle tension. The muscle would be unable to contract and therefore no force could be produced. Choices A, C, and D are all incorrect because they assume that contraction is still possible, which it is not in this scenario.

Hypothetically, If a Muscle Were Stretched to the Point Where