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NEETZoologyLocomotion and Movement

Match List I with List II. List I List II A. Fascia I. Storehouse of calcium ions B. Fascicle II. Functional unit of contraction C. Sarcomere III. Muscle bundle D. Sarcoplasmic reticulum IV. Collagenous connective tissue layer Choose the correct answer from the options given below:

Options

  1. AA-III, B-IV, C-II, D-I
  2. BA-IV, B-III, C-I, D-II
  3. CA-IV, B-III, C-II, D-I
  4. DA-III, B-IV, C-I, D-II

Correct answer

C. A-IV, B-III, C-II, D-I

Step-by-step solution

According to NCERT, skeletal muscle is made of a number of muscle bundles or fascicles held together by a common collagenous connective tissue layer called fascia. The sarcoplasmic reticulum of the muscle fibres is the storehouse of calcium ions. The portion of the myofibril between two successive Z-lines is considered the functional unit of contraction and is called a sarcomere. Therefore, the correct matching is A-IV, B-III, C-II, D-I. Answer: A-IV, B-III, C-II, D-I

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