What is the term for the fraction of the ATPase cycle in which a myosin head is bound to an actin filament? The dwell time The binding fraction The activated fraction The duty cycle The binding percentage

Question

Howard Evans

Social Studies

10 August, 10:35

What is the term for the fraction of the ATPase cycle in which a myosin head is bound to an actin filament? The dwell time The binding fraction The activated fraction The duty cycle The binding percentage

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Answers (1)

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Adison Webb · Answer 1

The duty cycle

Explanation:

Muscle shortening occurs when myosin heads bind to actin filaments and pull the actin inwards. As an energy action, the duty cycle is the fraction of one period in which myosin head is active for the muscle shortening. This period is expressed as a percentage or a ratio when myosin heads complete an on-and-off cycle.