what is the roll of epidermis in plants?
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The epidermis is single layer of parenchymatous cell which is completely arranged with out any space. It covers the leaves, stems and roots. The epidermis(due to its waxy cutickes)provides a protective barrier against mechanical injury, loss of water,etc.
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Epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection. Various modified epidermal cells regulate transpiration, increase water absorption, and secrete substances.
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