. Differentiate between parenchyma collenchyma


and sclerenchyma based on their cell wall.

Best Answer

Explanation-

S.No Parenchyma Collenchyma Sclerenchyma
1 The cell wall is commonly thin.

Extra thickenings in some places

(at tangential angles, walls)

Highly thick-walled cells with little

or no protoplasm.

2 Thickness is uniform. Uneven thick cell wall. Thickening is uniform.
3 Cell wall is made up of cellulose.

Thickening consists of

hemicellulose and pectin.

Thickening can be of cellulose,

lignin, or can be of both.

4 Consist of living cells. Consists of living cells. Made up of dead cells.
5 Used for storage

Provides mechanical

strength and elasticity

Provide mechanical strength only.

Final Answer-

Parenchyma, collenchyma, and sclerenchyma are simple permanent tissues. Both parenchyma and collenchyma

contain living cells, whereas sclerenchyma contains dead cells.

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