what are sclerenchyma cells?
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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. ... Sclerenchyma cells occur in many different shapes and sizes, but two main types occur: fibres and sclereids.
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They consist of dead cells and lack protoplasm.
● The walls of cells in this tissue are thickened with deposition of lignin.
● There is no intercellular space present in the cells.
● They contribute to the hardness of sead cot and nut shells.
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