Question

Define root pressure.

Answer 1

Root pressure:

1. The horizontal osmotic pressure within the cells of a root system that causes sap to rise up to leaves through the stem is called root pressure.
2. The driving force behind the upward movement of water from roots to leaves for transpiration is explained by a concept called root pressure.
3. Root pressure takes place in the xylem of vascular plants
4. It occurs when the soil moisture level is high either at night or when transpiration is low during the day