Which one of the following statement is incorrect regarding diffusion pressure deficit (DPD)?

Question

Which one of the following statement is incorrect regarding diffusion pressure deficit (DPD)? (A) DPD is directly proportional to the solute concentration of the system. (B) DPD of fully turgid cell becomes zero (C) DPD for a plasmolysed cell is highest (D) DPD of flaccid cell is always more than osmotic pressure.

Tardigrade Admin · Accepted Answer

DPD is the difference in diffusion pressure of a solution to its pure solvent. On addition of solute DPD increases. DPD = OP - TP. For a flaccid cell TP is zero thus DPD is equal to OP. For a plasmolysed cell TP is negative thus DPD is maximum and is equal to OP + TP.

Q. Which one of the following statement is incorrect regarding diffusion pressure deficit (DPD)?

DPD is directly proportional to the solute concentration of the system.

DPD of fully turgid cell becomes zero

DPD for a plasmolysed cell is highest

DPD of flaccid cell is always more than osmotic pressure.

DPD is the difference in diffusion pressure of a solution to its pure solvent. On addition of solute DPD increases. DPD = OP - TP. For a flaccid cell TP is zero thus DPD is equal to OP. For a plasmolysed cell TP is negative thus DPD is maximum and is equal to OP + TP.