Answer:
Exchange of gases takes place in the plants through the tiny pores on the surface of their leaves called stomata.
The exchange of gases also occurs in the roots of plants. They do so by taking in oxygen from the air spaces present in soil. This oxygen enters the root hairs through diffusion and then it reaches other cells of roots for respiration. Carbon dioxide produced during respiration move outside through the root hairs in the same way by the process of diffusion.
The structures responsible for gaseous exchange in plants is stomata and in human beings is that is alveoli.
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