First slide

The Tissues

Question

Cells with non-lignified, unevenly thickened cell walls specialised for mechanical functions are present in

Easy

A

parenchyma
B

collenchyma
C

sclerenchyma
D

meristem

Solution

Collenchyma tissue is composed by elongated living cells of unevenly thickened primary walls, which possess hemicellulose, cellulose and pectic materials. It provides support, mechanical strength and flexibility to the petiole, leaf veins, and stem of young dicot plants, allowing for easy bending without breakage.

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