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NEET-UG Biology · Class 11

How a muscle fibre is built — NEET & JEE Questions

How a muscle fibre is built is a topic in Locomotion and Movement, a Class 11 Biology chapter of the NEET-UG syllabus. TestBudy holds 15 published NEET-UG questions on How a muscle fibre is built, each with the marking scheme of the real paper. The ideas it examines include What lies between two Z lines, Proteins of the thick and thin filaments.

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Key formulas and concepts

The ideas How a muscle fibre is built is examined on, as they are tagged in the syllabus tree.

  • What lies between two Z lines
  • Proteins of the thick and thin filaments

How a muscle fibre is built MCQs with solutions

10 of the 15 published questions on this topic, exactly as they appear in a test. Answers and worked solutions come with your result rather than on this page.

  1. Question 1 · difficulty L1 · recall

    The major protein of thin filaments:

    • A. myosin
    • B. actin
    • C. keratin
    • D. collagen
  2. Question 2 · difficulty L1 · recall

    The functional contractile unit between two Z lines:

    • A. tendon
    • B. myofibril
    • C. sarcomere
    • D. fascicle
  3. Question 3 · difficulty L1 · recall

    The major motor protein of thick filaments:

    • A. troponin
    • B. tropomyosin
    • C. myosin
    • D. actin
  4. Question 4 · difficulty L1 · recall

    What is the functional contractile unit between two successive Z lines in a myofibril?

    • A. Sarcolemma
    • B. Fascicle
    • C. Sarcomere
    • D. Tendon
  5. Question 5 · difficulty L2 · understanding

    Which protein forms the thick filaments of skeletal muscle?

    • A. Tropomyosin
    • B. Actin
    • C. Troponin
    • D. Myosin
  6. Question 6 · difficulty L2 · understanding

    Which region of a sarcomere contains only thin filaments?

    • A. I band
    • B. A band
    • C. H zone
    • D. M line
  7. Question 7 · difficulty L2 · understanding

    The functional contractile unit of a striated muscle fibre is the

    • A. sarcomere
    • B. nephron
    • C. alveolus
    • D. axon
  8. Question 8 · difficulty L3 · application

    A microscopic region contains thick filaments throughout and overlaps with thin filaments over part of its length. Which band is being described?

    • A. I band
    • B. A band
    • C. Z line
    • D. Only the H zone
  9. Question 9 · difficulty L3 · application

    Which structure anchors the thin filaments at the boundary of a sarcomere?

    • A. H zone
    • B. M line
    • C. Z line
    • D. Sarcolemma
  10. Question 10 · difficulty L3 · application

    A sarcomere extends from one

    • A. Z line to the next Z line
    • B. M line to the next M line only
    • C. A band to the next A band only
    • D. H zone to the next H zone

Common mistakes in How a muscle fibre is built

Recorded against questions in this topic that are not shown above, so none of these points at an answer you can see on this page.

  • Attributing striations to cell organelles rather than to ordered myofilaments.
  • Interchanging sarcolemma and sarcoplasm because their names are similar.
  • Reverses the identities of thick and thin filaments.
  • Assumes the filaments themselves shorten during contraction.
  • Assumes contraction occurs by shortening the myosin filament.

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