Question

Give reason - Cell wall of plant cell is tough

Answer 1

Answer:

In plants, a secondary cell wall is a thicker additional layer of cellulose which increases wall rigidity. Additional layers may be formed by lignin in xylem cell walls, or suberin in cork cell walls. These compounds are rigid and waterproof, making a secondary wall stiff.

Explanation:

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Answer 2

Answer:

plant cell wall are so tough and rigid because they are made of a special substance called cellulose

Explanation:

in plant a secondary cell wall is thicker has additional layer of cellulose which increase wall rigidity

additional layer mein bhi form legain in xylem cell wall these compound are rigid and waterproof making a cell stiff