iven the perfect osmometer (plasma membrane bounded by perfectly rigid walls) inside the cell, the solute potential is 0 and the pressure potential is 0, outside the cell the water potential is also 0   you add a dilute salt solution that changes the osmotic potential of the solution to 0.3MPa   1. what is the approximate value of the solute potential and pressure potential inside the cell after the system has come to equilibrium?   2. why does the movement of relatively few water molecules across the plasma membrane of the osmometer have such a large effect in the value of pressure potential?

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Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.