NEETBiologyLocomotion and MovementMCQ+4 / −1
According to the sliding filament theory:
- AThe actin filaments slide away from A-band resulting in shortening of sarcomere.
- BActin and myosin filaments slide over each other to increase the length of the sarcomere.
- CLength of A-band does not change
- DI-band increases in length.
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Correct answer: C
Option (c) is the correct answer because length of A band remains unchanged during muscle contraction.
Option (a) is incorrect because actin filaments slide towards A-band.
Option (b) is incorrect because length of sarcomere decreases during muscle contraction.
Option (d) is incorrect because length of I-band decreases during muscle contraction.
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