Question

DPD of a cell can be expressed as ______ 

Options

• DPD = OP + TP

• DPD = OP x TP

• DPD = OP - TP

• DPD = TP - OP

Answer 1

DPD of a cell can be expressed as DPD = OP - TP.

Explanation:

Diffusion Pressure Deficit is expressed as osmotic pressure minus turgor pressure. The osmotic pressure of a solution is equivalent to the pressure which must be exerted upon it to prevent the flow of solvent across a semi-permeable membrane.

In a flaccid cell TP = 0 so DPD = OP

In a turgid cell DPD = 0 so TP = OP