Question

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$Explain\:Sclerenchyma$​

Answer 1

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. ...

Explanation:

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Answer 2

Answer:

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Explanation:

1) These are hard ,rigid anddead tissues.

2) The cell wall is very thick due to deposition of lignin , which is a waterproof material.

Intercellular spaces are absent.

3) These are specialized for providing mechanical support to the plant.

These are of two types =

I) Fibers

2) Sclereids

Fibres - These are much elongated cells with pointed ends.

Fibres occur in and around the vascular tissue,and may also occur below the epidermis as a sopportive tissue.

Some commercially important fibres are hemp,jute, cotton,flex,coir etc

Sclereids-These are short,rounded, thick walled cells. These occur singly or in group in stems,leaves fruits and seeds.The hardness of a seed coat is due to presence of abundant sclereids. The hard grit on a peer fruit is due to the presence of sclereids.