Which of the Following Statements Best Describes the Power Stroke

question 53

Multiple Choice

Which of the following statements best describes the power stroke of muscle contraction?

• A) The myosin head bends, pulling the thick filament toward the center of the sarcomere.
• B) The myosin head bends, pulling the thin filament toward the center of the sarcomere.
• C) The actin head bends, pulling the thin filament toward the center of the sarcomere.
• D) The actin head bends, pulling the thick filament toward the center of the sarcomere.

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