Cell Membrane

5. simple diffusion of water molecules
7. move through a protein Small, polar, hydrophilic Move until equilibrium happens when special proteins in the cell membrane are used to move ions and other small molecules across the membrane.
8. small ions and molecules pass through easily.
9. -more solute than water compared to the other solution-Water will diffuse from a high concentration to a lower concentration, so water will diffuse into the hypertonic solution.-If a cell is in a solution that is hypertonic to the cell, water will diffuse out of the cell until it reaches dynamic equilibrium. Shrinking the cell
10. -has the same concentration of water and solute as the other solution.-Water will still move, but there is not a concentration gradient.-If a cell is in an isotonic solution, water will move back and forth across the membrane.he cell will not shrink or swell.
14. directional flow of water
18. A difference in the distribution of something over a specific area.
19. -more water than solute compared to the other solution -Water will move from a high concentration to a lower concentration, so water will move into the hypertonic solution. -If a cell is in a solution that is hypotonic to the cell, water will diffuse into the cell. cell will expand
20. move until concentration on either side is equal

1. When the membrane of the plant cell pulls away from the cell wall, it is called
2. -in plants controls turgor pressure within the cell; this helps the cell maintain its shape from the inside.
3. molecules don't stop moving
4. things move from order to disorder
6. the spontaneous flow of energy is from high to low
11. small molecules first bind with the protein to pass into the cell.
12. NO energy required! Molecules move down (with) a concentration gradient
13. move through the lipid bilayer Small hydrophobic molecules
15. in the membrane
16. The idea that the membrane moves and is made of repeating parts
17. Energy IS required! Energy is consumed to move molecules against a concentration gradient