Question

What is the real force that is responsible for the movement of water from cell to cell?
A. OP
B. TP
C. DPD
D. WP

Answer 1

Hint: The real force which is responsible for the movement of water from cell to cell is the one which plays an essential role in ascent sap in plants. The scientist Meyer is the first one who termed this word in the year 1893. It depends upon the number of solute particles present in the system. It allows for easy absorption of water. The water is absorbed from higher to lower medium. Its value is always in a turgid solution.

Complete answer:
DPD stands for diffuse pressure deficit. It is the pressure difference between pure water and solution, or in simple terms, DPD can be defined as a thirst of the cell for water.
Diffuse pressure deficit depends on the number of solute particles present in the system.
It plays a vital role in ascent sap in plants.
In a plant, body water moves from one region to another region; it means from high DPD to low DPD.
Its value in a fully turgid solution and maximum in a plasmolysed cell.
OP stands for osmotic pressure. It is a significant factor in biology because the intracellular environment is different from the extracellular domain. With the help of this principle, plants use osmotic pressure for the movement of water.
TP stands for Turgor pressure. The pressure exerted by the fluid in a cell presses the cell membrane against the cell wall. With the help of this turgor pressure, the plant cell becomes rigid. If the turgor pressure is less, the plants will lose their water from the cell. Turgor pressure provides structural integrity to each cell and the tissue as a whole.
WP stands for wall potential or water potential. It is represented by a cell and cell membrane. The cell wall exerts pressure on the cell contents. It is always expressed in negative numbers.
Hence, the real force responsible for the movement of water from cell to cell is DPD.
So, the correct answer is “Option C”.

Note: DPD means diffuse pressure deficit. It depends on the number of solutes present in the system. It allows the easy absorption of water due to pressure deficit. The real pressure responsible for the movement of water from cell to cell is DPD. The turgor pressure, osmosis pressure, wall potential does not play any role in it.