Question

19).Which of the following substances is present in the cell walls of sclerenchyma? *
1 point
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Answer 1

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The cell wall of sclerenchyma is formed of cellulose and hemicellulose. It is thickened due to the secondary deposition of lignin (i.e. have lignified cell walls ). Lignin acts as cement and hardens the cell wall.

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Answer 2

Cellulose, hemicellulose, lignin

Explanation:

The cell walls of Sclerenchyma is formed of cellulose and hemi cellulose. It is thickened due to the secondary deposition of lignin. Lignin acts as cement and hardens the cell wall.

The stiffness of the sclerenchyma depends on the orientation of cellulose and varies widely under developmental control.