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ZoologyNEET 2021Skeletal muscle and mechanism of contraction

Locomotion and Movement

During muscular contraction, which of the following events occur?

(a) 'H' zone disappears

(b) 'A' band widens

(c) 'I' band reduces in width

(d) Myosin hydrolyses ATP, releasing the ADP and Pi

(e) Z-lines attached to actins are pulled inwards

Choose the correct answer from the options given below:

  1. A.(a), (c), (d), (e) only✓
  2. B.(a), (b), (c), (d) only
  3. C.(b), (c), (d), (e) only
  4. D.(b), (d), (e), (a) only

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