Which ONE of the following statements regarding the sliding filament theory of muscle contraction is CORRECT ? (Lecture: skeletal muscle, Chapter: the cross-bridge cycle)

Question

Which  ONE  of the following statements regarding the sliding filament theory of muscle contraction is  CORRECT ? (Lecture: skeletal muscle, Chapter: the cross-bridge cycle)

Answer

Sliding is caused by the cross-bridges formed between the myosin head and specific sites on the actin molecule

Answer

ATP hydrolysis provides the energy for the myosin head to unbind from the actin binding site.

Answer

Every cycle, four molecules of ATP are used by each myosin head.

Answer

The cross-bridges are activated once during a contraction.

Answer

The troponin complex is an ATP sensor.

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Which ONE of the following statements regarding the sliding filament theory of...

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