Which of the Following Statements About Muscle Contraction Is TRUE

question 18

Multiple Choice

Which of the following statements about muscle contraction is TRUE?

• A) ATP hydrolysis releases myosin from actin.
• B) ATP hydrolysis results in strong binding of myosin to actin.
• C) ATP hydrolysis causes a conformational change in the myosin head.
• D) Muscle contraction occurs as ATP is hydrolyzed.
• E) ATP hydrolysis must occur before the actin-binding site closes.

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