Which Event Does NOT Occur During the Relaxation Period

question 77

Multiple Choice

Which event does NOT occur during the relaxation period?

• A) calcium is pumped by Ca²⁺-ATPase
• B) myosin-binding sites are covered by tropomyosin
• C) actin filaments extend back to their resting position
• D) calcium levels are rising in the sarcoplasm

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Definitions:

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The pressure that a single gas component in a mixture of gases would exert if it occupied the entire volume alone at the same temperature.

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A graph showing the relationship between the partial pressure of oxygen and the saturation of hemoglobin with oxygen.