Biology (3752 MCQS)

Kingdom Fungi(249) BiologIcal Molecules(126) The Cell(199) Kingdom plantae (400) Viruses (303) Homeostasis (271) Support and movement(293) Control and coordination(314) Kingdom Animalia(635) Reproduction(252) Bioenergetics(270) Growth and Development(190) Kingdom Monera(250)

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LECTURESHIP, SUBJECT SPECIALIST COURSE's

Chapter No 16 :Support and movement (293 MCQ`S)

  1. The H zone itself is bisected by
    1. Z line
    2. M line
    3. T tubules
    4. none
      5. Show Answer
      Answer: B
      Explanation:
      • N/A
  2. Thick myofilaments have diameter
    1. 8 nm
    2. 16nm
    3. 7 nm
    4. 7 to 8 nm
      5. Show Answer
      Answer: B
      Explanation:
      • N/A
  3. Diameter of thin filaments
    1. 8 nm
    2. 16 nm
    3. 7 to 8 nm
    4. 8 nm
      5. Show Answer
      Answer: C
      Explanation:
      • N/A
  4. How many strands of tropomyosin surround the actin core
    1. Two
    2. Six
    3. Four
    4. Three
      5. Show Answer
      Answer: A
      Explanation:
      • N/A
  5. Myosin binding sites on the actin are covered by
    1. troponin
    2. myosin
    3. tropomyosin
    4. Fibrous actin
      5. Show Answer
      Answer: C
      Explanation:
      • N/A
  6. Troponin is complex of how many polypeptides
    1. three
    2. two
    3. six
    4. four
      5. Show Answer
      Answer: A
      Explanation:
      • N/A
  7. Troponin T binds to
    1. calcium ions
    2. inhibitory subunit
    3. Tropomyosin
    4. troponin
      5. Show Answer
      Answer: C
      Explanation:
      • N/A
  8. Myosin-actin interaction are controlled by
    1. troponin
    2. tropomyosin
    3. both a and b
    4. none
      5. Show Answer
      Answer: C
      Explanation:
      • N/A
  9. Each myosin molecule possesses
    1. a tail
    2. two heads
    3. six polypeptides
    4. All
      5. Show Answer
      Answer: D
      Explanation:
      • N/A
  10. Active sites of the actin are actually found on
    1. Globular actin
    2. G actin
    3. Fibrous actin
    4. both a and b
      5. Show Answer
      Answer: D
      Explanation:
      • N/A

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