In submerged hydrophytes entry of CO₂ is through

Options

(a) Epidermis as dissolved CO₂
(b) Epidermis as carbonates only
(c) Epidermis as bicarbonates only
(d) Both carbonates and bicarbonates

Correct Answer:

Both carbonates and bicarbonates

Explanation:

In submerged hydrophytes (plant which remain completely dipped in the water) CO₂ enters through epidermis as both carbonates and bicarbonates.