Why is epidermis important for the plants?

Explanation

(i) Epidermis is the outer protective covering of plants that prevents the entry of pathogens and pests.
(ii) Its cuticle checks the rate of water loss from aerial parts.
(iii) Stomata present in it help in exchange of gases. Transpiration also occurs through them which keep the aerial parts cool.
(iv) Epidermis of the root and root hairs absorb water and minerals