Question

How does root pressure and ion concentration help in transport of water in plants?

Answer 1

Dear student

The movement of water takes place from the area of high water potential or less solute (ion) concentration to the area of low water potential or high solute (ion) concentration.

The roots always have less water potential and more solute concentration i.e less water and more solutes as compared to the soil. Thus, water moves easily from soil to roots.

After the absorption, of water into the xylem of roots, it creates a pressure inside the xylem vessels called root pressure. This root pressure is enough to transport water to different parts in small plants like grasses. However, this pressure cannot transport water to large plants.

Regards