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Locomotion And Movement

Question
CBSEENBI11025116
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During muscle contraction

  • size of 'A' bands remain same

  • size of 'H' zone becomes smaller

  • size of 'I' band decreases

  • diameter of fibre increases

Solution

A.

size of 'A' bands remain same

During muscle contraction, both I-band and H-zone progressively shorten and eventually disappear while length of A-band remains constant.

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