Q.

The functional unit of muscle contraction is represented by

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a

one complete ‘I’ band two halves of ‘A’ band

b

one complete ‘A’ band two halves of ‘I’ band

c

one complete ‘A’ and one complete ‘I’ band

d

one half part of ‘A’ band and one half part of ‘I’ band

answer is C.

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Detailed Solution

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The portion of the myofibril between two successive ‘Z’ lines is considered as the functional unit of contraction and is called a sarcomere.

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