The outermost layer of the cell is known as the Epidermis.
It covers the entire plant.
It is a thin layer of single cells but in places with less water, the epidermis of the plants can become thick in order to avoid frequent water loss.
The cells are flat and they have no intercellular spaces between them.
The outer walls of the epidermal cells are thick and the inner walls are thin.
The epidermal cells often have long hair-like structures in roots which facilitate the absorption of water.
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