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Sarcomere

In muscle con...

Question

In muscle contraction, sarcomeres, become shorter. Which of the following does not occur in this process?

A

Z lines come closer

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B

A band shortens

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C

I band shortens

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D

H band shortens

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Solution

The correct option is B A band shortens
A band not going to shorten during muscle contraction.so correct option is B

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Similar questions

Q. During muscle contraction, which of the following shortens?
(i) A band
(ii) I band
(iii) Sarcomere

Q. Select true or false
i. Shortening of sarcomere occurs when Z lines attached to actin filaments are pushed outwards.
ii. During contraction, I bands retain their lengths.
iii. During contraction, A bands get reduced in length.

During a muscle contraction, which of the following shortens?

Q. Assess the statements.
1. A-bands of the muscle is dark and contain myosin.
2. I-bands are the light bands and contain actin.
3. During muscle contraction the A-band contracts.
4. The part between the two Z-lines is called as sarcomere.
5. The central part of thick filament, not overlapped by thin filament, called H-zone.
Of the above statements.

Q. Identify the events occurring in muscular contraction;

(i) H-zone disappears

(ii) A band widens

(iii) I-band reduces in width

(iv) The width of A band is unaffected

(v) M-line and Z-line come closer

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