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. i. Distribution: Collenchyma cells are present at the periphery of herbaceous stems, petioles (e.g. Begonia) and in the ribs of […]
Collenchyma Tissue in Plants | Simple Tissue
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Parenchyma in Plants | Simple Tissue
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Parenchyma (Figs. 8.1, 8.6) is a cell and tissue type in which the cells have only thin primary walls; the cells are unspecialized, lack the characteristic wall of collenchyma and the secondary walls of sclerenchyma; the cells have live nucleate protoplast concerned with various physiological activities in plants; the cells are meristematic, or permanent, simple […]
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