The outer ,protective layer of a leaf is called the epidermis.
What is epidermis ?
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.
What is the role of epidermis in plant ?
The epidermis in plants is a layer of cells that usually covers the roots, stems, leaves and flowers of plants, it Provides protection against water loss, Regulates the process of gas exchange Epidermis secretes metabolic compounds and helps in the absorption of water and essential minerals.
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