Question

How is water absorbed and transported to leaves during the night?

• A. By root pressure.
• B. By gravitational force.
• C. By negative geotropism.
• D. All of the above.

Answer 1

The correct option is A

By root pressure.

During the night, transpiration is very low as the stomata close and the pull created by transpiration is absent to absorb water. In such a situation, root pressure helps to overcome this problem. Root pressure is caused by this accumulation of water in the xylem pushing on the rigid cells.