Which sentence is not true for muscle contrac | vedclass

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Question

(C) According to the sliding filament theory of muscle contraction: $1$. The length of the thin and thick filaments remains constant; they slide past

Vedclass · Accepted Answer

On stimulation,there is no change in the light band.

Vedclass · Answer

(C) According to the sliding filament theory of muscle contraction: $1$. The length of the thin and thick filaments remains constant; they slide past each other,which is a correct statement. $2$. During contraction,the $Z$-lines defining the sarcomere are pulled closer together,which is a correct statement. $3$. During contraction,the light band ($I$-band) shortens because the actin filaments slide into the $A$-band. Therefore,the statement that there is no change in the light band is incorrect. Since the question asks for the statement that is not true,option $C$ is the correct answer.

Which sentence is not true for muscle contraction?

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