1. Diffusion: Part 2 Objective:
SWBAT classify solutions as isotonic, hypertonic, hypotonic
SWBAT predict the movement of particles through a cell membrane
Bellringer: Draw the solution at equilibrium.

2. What is happening here???

4. The cell membrane has protein molecules acting as channels.

5. Diffusion Passive Diffusion Facilitated Diffusion
Goes right through the bilayer
Goes through a protein channel

6. Diffusion Passive Diffusion Facilitated Diffusion Small Large
Uncharged
Ex) Water, O2, CO2
Large
Charged
Ex) Sugar, Na+, Cl-

7. Facilitated Diffusion
Diffusion that is helped by proteins in the cell membrane.

8. Facillitated Diffusion

9. Diffusion vs. Facilitated Diffusion

10. Isotonic Solution Ways to Compare Solutions
There are equal amounts of molecules on both sides of the membrane
Outside
Inside

11. Hypotonic Solution Ways to Compare Solutions
There are less molecules on outside of the membrane
Outside
Inside

12. Hypertonic Solution Ways to Compare Solutions
There are more molecules on the outside of the membrane.
Outside
Inside

13. Diffusion Practice!