What is the role of epidermis in plants?

Question

Lecithin, a small molecular weight organic compound in living tissues, is an example of:

Answer 1

The epidermis is the outermost layer of cells in plants and it plays several important roles:

Protection: It protects the plant from mechanical injury, pathogens, and water loss.
Prevents Water Loss: The epidermis is often covered with a waxy layer called cuticle that reduces evaporation.
Gas Exchange: It contains stomata, which help in the exchange of gases (O₂ and CO₂) during photosynthesis and respiration.
Absorption: In roots, the epidermis has root hairs which increase the surface area for water and mineral absorption.

Solution and Explanation