Question

define sclerenchyma, arenchyma and Colenchyma​

Answer 1

Answer:

sclerenchyma : strengthening tissue in a plant, formed from cells with thickened, typically lignified, walls.

arenchyma : a soft plant tissue containing air spaces, found especially in many aquatic plants.

collenchyma : tissue strengthened by the thickening of cell walls, as in young shoots.

Answer 2

Answer:

Sclerenchyma, in plants, support tissue composed of any of various kinds of hard woody cells. Mature sclerenchyma cells are usually dead cells that have heavily thickened secondary walls containing lignin.

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Aerenchyma is a spongy tissue that forms spaces or air channels in the leaves, stems and roots of some plants, which allows exchange of gases between the shoot and the root.

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Collenchyma is a cell and tissue type in which the primary walls are unevenly thickened and consist of homogeneous, more or less elongated living cells; it provides mechanical support to the plant organs where present.

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