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the gradual difference in the concentration of solutes in a solution between two regions.
Diffusion of a solvent (usually water molecules) through a semipermeable membrane from an area of lowsolute concentration to an area of high solute concentration.
The passive movement of molecules or particles along a concentration gradient, or from regions of higher to regions of lower concentration.
A cell placed in a highly concentrated solution will result in the water molecules diffusing out of the cell. Eventually, the cell will shrink.
A cell placed in a low concentrated solution will result in the water molecules diffusing in of the cell. Eventually, the cell will enlarge.
Pertaining to a solution that has the same tonicity as some other solution with which it is compared. For example, blood serum is isotonic to a physiologic salt solution. Solutions that have same tonicity will result in no net flow of water across the cell membrane.
- The lysis or the breaking open of red blood cell (erythrocyte) causing the release of hemoglobin into the surrounding fluid.
- hemo-, meaning blood + -lysis, meaning to break open
Crenation - cell shrinks by osmosis because H2O leaves cell. solution is HYPERtonic
- The pressure exerted by water inside the cell against the cell wall
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