Question

From where do roots of plants absorbs oxygen?

Answer 1

Explanation:

The roots of plants absorb water from the Root Hairs by osmosis* which is then transferred to the Epidermis by osmosis.... This process is continued till it pass through the Cortex, Endodermis, Pericycle to reach the Root Xylem...

Alll the above processes happen due to osmosis.....

*Osmosis is the movement of water molecules from its region of higher concentration to its region of lower concentration through a semi permeable membrane

Answer 2

the roots of a plant take up air from spaces between the soil particles. Root hairs are in contact with the air in the soil particles .Oxygen from the air in soil particles diffuse into root and reach all the cells of the root where it is utilised in respiration