Muscular System AP Biology

5 Questions | Total Attempts: 68

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Muscular System Quizzes & Trivia

AP Biology Muscular System Post Quiz


Questions and Answers
  • 1. 
    Muscle cells are stimulated by neurotransmitters released from the tips of: Column A Column B
    • A. 

      T tubules

    • B. 

      Motor cell axons

    • C. 

      Motor cell dendrites

    • D. 

      Sensory cell dendrites

    • E. 

      Sensory cell axons

  • 2. 
    All of the following are involved in the contraction of a muscle EXCEPT: Column A Column B
    • A. 

      Actin

    • B. 

      CAMP

    • C. 

      Myosin

    • D. 

      Tropomyosin

    • E. 

      Troponin

  • 3. 
    When an organism dies, its muscles remain in a contracted state termed rigor mortis for a brief period of time. Which of the following most directly contributes to this phenomenon? Column A Column B
    • A. 

      No ATP to break bonds between the actin and myosin

    • B. 

      No oxygen supplied to muscle

    • C. 

      No energy for the synthesis of actin and myosin

    • D. 

      No ATP to move cross-bridges

    • E. 

      No calcium to bind to troponin

  • 4. 
    Which of the following does not form part of the actin filament of a muscle cell? Column A Column B
    • A. 

      Tropomyosin

    • B. 

      Calcium-binding site

    • C. 

      Troponin

    • D. 

      Myosin

    • E. 

      Thin filament

  • 5. 
    Which of the following is the last step leading up to muscle contraction that occurs just before a myofibril contracts
    • A. 

      Tropomyosin exposes binding sites on actin

    • B. 

      ATP binds to myosin

    • C. 

      Sarcoplasmic reticulum releases calcium ions

    • D. 

      ATP is converted to ADP and Pi

    • E. 

      Action potential travels through T-tubules

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