Question

how are the surface area of leaves and lungs important for gaseous exchange

Answer 1

Answer:

Large surface area increases the process of diffusion.

Explanation:

Gaseous exchange takes place through specialized structures by the process of diffusion. In plants, stomata present on the leaves while in case of animals alveoli in the lungs are responsible for gaseous exchange. The structure of leaves and lungs maximizes their surface area which increases the process of diffusion. Thus surface area of leaves and lungs are important for gaseous exchange.

Answer 2

Gaseous exchange takes place by the process of ‘diffusion’.

Explanation:

In plants, stomata present in the under of the leaves helps for the gaseous exchange, whereas in the case of animals, alveoli present in the lungs plays the role as the air in the ‘alveoli’ is oxygen rich. In both leaves as well as lungs, the specialized structures maximize the surface area which enables the process of diffusion.  

Hence, the ‘surface area’ of leaves and lungs plays an eminent role for gaseous exchange without which both cannot survive.