Water Potential and Osmosis Osmosis results in the net uptake or loss of water by the cell and depends on which component, the cell or extracellular fluids, has the highest water potential . Water will always move across the membrane from the solution with the higher water potential to the one with lower water potential. Addition of solutes to water lowers the water potential into the negative range.
Increased pressure raises the water potential into the positive range.
Plant cells will gain or lose water to intercellular fluids depending upon their water potential. Contains integral transport proteins that control the movement of solutes between the cytosol and the vacuole. Has a membrane potential. Several solutes are transported between the cytosol and vacuole due to this membrane potential and proton gradient. Across the plasma membranes and cell walls.