Diffusion
- movement of particles from an area of high concentration to an area of low concentration
- movement of particles from an area of high concentration to an area of low concentration
Osmosis
-movement of water from an area of high concentration to an area of low concentration
Three osmosis situations
1. isotonic
-there are equal amounts of water in and outside the cell
-the concentration of solute is equal on both sides of the cell membrane
-no net gain of water into or out of the cell
-for an animal cell, this would be a normal cell
-for a plant cell, this would create a flaccid cell
2. hypotonic
-water moves into the cell to equalize the amount of solute in and surrounding the cell
-this can cause a cell to burst
-the concentration of solute is higher within the cell, so water would rush inside to equalize the solute and solvent ratio
-this would create a lysed animal cell
-this would create a turgid (normal) plant cell
3. hypertonic
-water moves out of the cell to equalize the solute concentration
-this causes the cell to shrink
-the concentration is higher outside of the cell, so water rushes out to equalize the concentration of solute and solvent in and out of the cell
-this would be a shriveled animal cell
-this would create a plasmolyzed plant cell
1. isotonic
-there are equal amounts of water in and outside the cell
-the concentration of solute is equal on both sides of the cell membrane
-no net gain of water into or out of the cell
-for an animal cell, this would be a normal cell
-for a plant cell, this would create a flaccid cell
2. hypotonic
-water moves into the cell to equalize the amount of solute in and surrounding the cell
-this can cause a cell to burst
-the concentration of solute is higher within the cell, so water would rush inside to equalize the solute and solvent ratio
-this would create a lysed animal cell
-this would create a turgid (normal) plant cell
3. hypertonic
-water moves out of the cell to equalize the solute concentration
-this causes the cell to shrink
-the concentration is higher outside of the cell, so water rushes out to equalize the concentration of solute and solvent in and out of the cell
-this would be a shriveled animal cell
-this would create a plasmolyzed plant cell