Question

Choose the correct option.

(i) The pressure exerted in the root due to continuous inflow of water is called

• A. Shoot pressure
• B. Root pressure
• C. Cell pressure
• D. Transpirational pull

Answer 1

The correct option is B

Root pressure

The correct option is B:

Explanation of the correct option:

1. Root pressure is a positive hydrostatic pressure developed in the roots due to the continuous inflow of water.
2. The root pressure develops in the xylem sap of the roots.
3. It creates a force that is responsible for the upward movement of water molecules along with the transpirational pull.

Explanation of the incorrect options:

Option A:

Shoot pressure is the pressure developed in the shoot and it can be measured by measuring the water potential of the plant tissues.

Option C:

The pressure developed in the cell by the cell contents of the cell against the cell wall is known as the cell pressure.

Option D:

The transpirational pull is a continuous suction pull developed in the roots and stem due to the loss of water from the aerial parts of the plant in the form of water vapor.

Final answer: The pressure generated in the roots by the continuous flow of water is called root pressure.