Question

What is the role of air spaces?​

Answer 1

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${\green{\dashrightarrow}}$The spongy tissue that forms air spaces between the cells of leaves, stems and roots of some plants are called aerenchyma cells.

• It helps in the gaseous exchange between the shoot and the root and also provides buoyancy to the aquatic plants.

Answer 2

Answer:

Intercellular air spaces within the spongy mesophyll layer – they allow the diffusion of carbon dioxide and oxygen. Stomata (small pores usually found on the lower surface of the leaf) – allow carbon dioxide and oxygen to enter and leave the leaf.

Explanation:

Large air cavities provide buoyancy for the leaf. The large intercellular spaces continue into the stem and root and they provide the necessary oxygen to these organs. ... The buoyancy which keeps plants upright or floating in the water is often achieved by the presence of large air spaces within the plant tissue.

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