Question

how does the exchange of gases occurs in plant across the surface of stem and leaves​

Answer 1

Explanation:

The exchange of gases through the stomatal pore is dependent upon the turgidity of the guard cells. Stomata are majorly present on the surface of the leaves apart from the epidermal surface of young stem. ... In roots stomatal pores as well as lenticels are absent, exchange of gases occurs through root hairs.