Q. 35.0( 3 Votes )
How do stems of a plant help in excretion of gases?
Stems of plants also possess stomata through which diffusion of gases occur. The oxygen from air diffuses into the stem for respiration through stomata and similarly, carbon dioxide diffuses out into the air. The stems of woody plants possess lenticels (large raised pores) to facilitate the exchange of gases, thereby help in excretion.
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