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The Myosin Quiz
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The Myosin Quiz

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@MultiPurposeSmokyQuartz1749

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Questions and Answers

Which statement accurately describes the role of myosin ATP-dependent motor protein?

  • Myosin releases ADP in a power stroke when bound to actin.
  • Myosin attaches when ATP is bound.
  • Myosin is cocked when ATP is exchanged for ADP + Pi. (correct)
  • Myosin releases when ATP is absent.

    • What is the composition of the actomyosin complex?

  • Two actin filaments on either side of a myosin filament. (correct)
  • One myosin filament with two actin filaments on either side.
  • Two myosin filaments on either side of an actin filament.
  • One actin filament with two myosin filaments on either side.

    • What triggers the release of myosin from actin?

  • Binding of actin to myosin.
  • Binding of ADP to myosin.
  • Binding of ATP to myosin. (correct)
  • Binding of Pi to myosin.

    • Which statement accurately describes the power stroke of the myosin ATP-dependent motor protein?

    <p>The power stroke occurs when ADP and Pi are released from myosin and actin is bound.</p> Signup and view all the answers

    Which of the following accurately describes the role of ATP in the myosin ATP-dependent motor protein?

    <p>ATP is necessary for myosin to perform the power stroke.</p> Signup and view all the answers

    Which of the following accurately describes the composition of the actomyosin complex?

    <p>The actomyosin complex consists of two actin filaments on either side of myosin motor heads.</p> Signup and view all the answers

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