Q. 25.0( 2 Votes )

Which part of the root is involved in the exchange of respiratory gases in plants?

Answer :

Root hair

Explanation: Root hairs are minute hair-like structures on the roots of plants. They help in respiration and absorption of water and minerals from the soil. As we know the soil is full of air spaces. The root hairs are a means for this air to enter into the root through its thin cell walls. The carbon dioxide produced as a by-product also diffuses out from the root hairs. Hence exchange of gases happens successfully.

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