Question
Give different ways by which a plant transpires.

Answer

Transpiration takes place by the following three ways:-
(i) Stomatal Transpiration: Stomata are pores present in the epidermis of the leaves. These normally remain open during the day time to take in carbon dioxide for photosynthesis. Simultaneously, water vapour diffuses out of the stomata. Approximately, 80-90\% of transpiration takes place through stomata.
(ii) Cuticular Transpiration: Cuticle is a thin waxy layer on the surface of the leaf. Some amount of water vapour escapes through it.
(iii) Lenticular Transpiration: In woody plants, the stem has openings on their surface called lenticels which is composed of loose mass of cells. Water vapour easily escapes through them.

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