A) Protection from adverse condition
B) Gaseous exchange
C) Conduction of water
D) Transpiration
Correct Answer: C
Solution :
[c] Epidermis is present as outermost layer of plant body such as leaves, flowers, stem and root. It is covered with cuticle (a waterproof layer of waxy substance cutin). The main function of epidermis is to protect the plant from desiccation and infection. Infact, cuticle of epidermis helps to reduce water loss by evaporation from the plant surface and also helps in preventing the entry of pathogen (bacteria, fungi etc.). The aerial surface of many plant bear cutinised hair (trichomes) to reduce transpiration.
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