Question

Diffusion pressure deficit is the amount by which two solutions differs in there

• A. T.P
• B. O.P
• C. D.P
• D. W.P

Answer 1

The correct option is C

D.P

The correct option is C

Explanation for the correct option

1. Diffusion pressure deficit or DPD is defined as the difference between the diffusion pressure of the solution and its solvent at a particular atmospheric condition.
2. The term diffusion pressure deficit was first coined by B.S. Mayer in the year 1938.
3. It is also known as suction pressure.
4. It allows easy absorption of water due to diffusion pressure gradient.
5. Water always moves from lower to higher DPD.

Explanation for the incorrect option

Option A

1. T.P. is defined as turgor pressure.
2. It Is referred to as the pressure developed because of stretch developed in the walls of plants.
3. DPD = OP - TP

Option B

1. O.P is known as osmotic pressure.
2. It is the pressure developed because of the movement of water from higher water to lower water concentration.
3. DPD= OP - TP

Option D

1. W.P is known as water potential.
2. It is defined as the difference in potential energy between a given sample of water and a pure sample of water.
3. Denoted by psi.

Final answer: Diffusion diffusion pressure deficit is the amount by which two solutions differs in there D.P