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Musculoskeletal System

47. Muscle Systems / Musculoskeletal System / Problem 2

Which of the following must take place in order to expose the myosin-binding site?

A

Tropomyosin must be securely wrapped around actin.

B

There should be a sufficient supply of ATP.

C

ATP must be hydrolyzed to provide energy.

D

Troponin must bind with Ca²⁺ to move tropomyosin.

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