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What is sarcomere ?...

What is sarcomere ?

A

Part between two H-lines

B

Part between two A-lines

C

Part between two I-bands

D

Part between two Z-lines

Text Solution

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The correct Answer is:
D
Sarcomere is a part of myofibril between two successive Z-lines, which consists of two l-band halves, and an A-band between them. It is the functional unit of myofibril.
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NCERT FINGERTIPS-LOCOMOTION AND MOVEMENT-Locomotion And Movement
  1. Which of the following statements is incorrect ?

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  2. Dark bands are

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  3. What is sarcomere ?

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  4. The functional unit of contractile system in a striated muscle is

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  5. Given below is the figure of a sarcomere. Identify the parts labelled ...

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  6. Which of the following statements about the striated muscle is incorre...

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  7. Which of the following sarcomeres is labelled correctly ?

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  8. The given figure represents the histology of of a striated muscle. Ide...

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  9. Match coloum I with coloum II and select the correct option from the c...

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  10. Read the given statements and select the correct option. Statement 1...

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  11. Which of the following contractile proteins contributes 55% of muscle ...

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  12. The given figure shows an actin (thin) filament. Identify the labelled...

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  13. Fill up the blanks in the following sentence by selecting the correct ...

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  14. Actin binding sites are located on

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  15. The given figure is related with myosin monomer (meromyosis). Identify...

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  16. Which of the following statements are correct regarding muscle protein...

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  17. Which of the following statements about the molecular arrangement of a...

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  18. Which one of the following options shows the next stage of muscle cont...

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  19. During muscular contraction, which of the following events occur? (i)...

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  20. The figures given here repesent three diferent conditions of sarcomere...

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