Cell Transport

4. type of embedded protein that provides a tunnel-like opening in the plasma membrane through which particles can diffuse
5. the separation of smaller particles from larger particles by diffusion through a semi-permeable membrane
6. the process by which some cells surround and take in materials
11. a difference in concentration of particles on opposites sides of a membrane
14. Particle movement from an area of higher concentration to an area of lower concentration, includes diffusion and osmosis
18. a solution in which the concentration of dissolved substances is the same as the concentration inside a cell
20. a form of endocytosis in which the cell takes in fluids ("cell drinking")
23. the passive movement of particles along a concentration gradient until they are evenly distributed (like a lump of sugar that dissolves in a beaker of water)
24. a form of endocytosis in which the cell takes in solid particles ("cell eating")

1. what happens to a cell placed in a hypotonic solution
2. a solution in which the concentration of dissolved substances is higher than the concentration inside a cell
3. movement of materials that requires energy because it moves materials against the concentration gradient
7. process by which cells remove materials from the cell by a vacuole that never really passes through the membrane
8. the tendancy of a cell or an organism to attempt to maintain a constant environment
9. protein that changes shape when a particle binds with it, involved in facilitated diffusion
10. form of passive transport that uses a carrier protein
12. the diffusion of water
13. when the concentration of substances on opposite sides of a membrane are the same
15. when a solution is created, the substance into which particles dissolve
16. type of protein that is involved in active transport
17. when a solution is created, the particles that are dissolved in the solvent
19. a solution in which the concentration of dissolved substances is lower than the concentration inside a cell
21. what happens to a cell placed in a hypertonic solution
22. is used during active transport but not passive transport