Question

The pressure developed in tracheary elements of the xylem due to the metabolic activity of roots is called

• A. O.P.
• B. T.P.
• C. Root Pressure
• D. Atmospheric pressure

Answer 1

The correct option is C

Root Pressure

The correct option is C.

Explanation of the correct option:

1. Root Pressure is the osmotic pressure within the cells caused by the roots which cause sap to rise through the plant system.
2. It is mainly mediated by osmosis.

Explanation of the incorrect options:

Option A

1. O.P. stands for osmotic pressure which is responsible for the gain of water.

Option B

1. T.P. stands for Turgor Pressure which is opposing pressure.

Option D

1. Atmospheric pressure is the pressure exerted by the atmosphere on any surface due to gravity.

Final answer: The pressure developed in tracheary elements of the xylem due to the metabolic activity of roots is called root pressure.