Question

From where do root hairs carry out exchange of oxygen and carbon dioxide?

• A. By breaking soil particles and absorbing air present inside them.
• B. Root hairs do not need to exchange gases as this is done by leaves of the plant.
• C. Root hairs of land plants absorb the dissolved oxygen in water to breathe.
• D. Root hairs exchange gases to and from tiny air pockets present in between soil particles.

Answer 1

The correct option is D

Root hairs exchange gases to and from tiny air pockets present in between soil particles.

Root hairs absorb exchange gases to and from tiny air pockets present in soil particles. Like any other cell, root cells also need to breathe and respire to survive. The large surface area provided by root hairs facilitates this.