Given below are two statements. One is labelled Assertion (A) and the other is labelled Reason (R).
Assertion (A): The cytoskeleton is made up of microtubules, microﬁlaments, and intermediate ﬁlaments.
Reason (R): It provides mechanical support, aids in cell motility, and maintains the cell shape.
In light of the above statements, choose the correct answer from the options given below.

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Both (A) and (R) are true and (R) is the correct explanation of (A).

Both (A) and (R) are true but (R) is not the correct explanation of (A).

(A) is true but (R) is false.

Both (A) and (R) are false.

answer is A.

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Detailed Solution

The assertion is correct. The cytoskeleton is a dynamic network of protein filaments found in the cytoplasm of cells. It is composed of three main types of filaments: microtubules, microfilaments (actin filaments), and intermediate filaments.

The reason is also correct. The cytoskeleton plays essential roles in providing mechanical support to the cell, allowing it to maintain its shape and resist external forces. It is also involved in cell motility, including processes such as cell crawling, muscle contraction, and the movement of cilia and flagella.

Therefore, both Assertion (A) and Reason (R) are correct, and Reason (R) provides a valid explanation for Assertion (A).

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