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Which of the following is correct regarding changes in muscle fibre from relaxed to contracted state in the given figure?
  • a)
    The length of the thick and thin myofilaments has changed
  • b)
    Length of both anisotropic and isotropic band has changed
  • c)
    The myosin cross-bridges move on the surface of actin and the thin and thick myofilaments slide past each other
  • d)
    Length of the sarcomere remains same
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
Which of the following is correct regarding changes in muscle fibre fr...
During muscle contraction, the cross-bridge of the myosin of thick myofilaments connect with portions of actin of the thin myofilaments. The myosin and the thin and thick myofilaments slide past each other. Length of A-band remains constant and actin filaments meet in the centre of the sarcomere. The Z-line comes closer and width of l-band decreases.
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Which of the following is correct regarding changes in muscle fibre from relaxed to contracted state in the given figure?a)The length of the thick and thin myofilaments has changedb)Length of both anisotropic and isotropic band has changedc)The myosin cross-bridges move on the surface of actin and the thin and thick myofilaments slide past each otherd)Length of the sarcomere remains sameCorrect answer is option 'C'. Can you explain this answer?
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Which of the following is correct regarding changes in muscle fibre from relaxed to contracted state in the given figure?a)The length of the thick and thin myofilaments has changedb)Length of both anisotropic and isotropic band has changedc)The myosin cross-bridges move on the surface of actin and the thin and thick myofilaments slide past each otherd)Length of the sarcomere remains sameCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about Which of the following is correct regarding changes in muscle fibre from relaxed to contracted state in the given figure?a)The length of the thick and thin myofilaments has changedb)Length of both anisotropic and isotropic band has changedc)The myosin cross-bridges move on the surface of actin and the thin and thick myofilaments slide past each otherd)Length of the sarcomere remains sameCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following is correct regarding changes in muscle fibre from relaxed to contracted state in the given figure?a)The length of the thick and thin myofilaments has changedb)Length of both anisotropic and isotropic band has changedc)The myosin cross-bridges move on the surface of actin and the thin and thick myofilaments slide past each otherd)Length of the sarcomere remains sameCorrect answer is option 'C'. Can you explain this answer?.
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