1. Outside of cell Inside of cell (cytoplasm) Cell membrane Proteins Protein channel Lipid bilayer Carbohydrate chains What is the circled molecule made up of?

2. The polar HEADS of the lipid bilayer face inside/outside of the cell and _____ water. Like or Do not Like

3. The cell membrane allows certain materials to pass through and other materials NOT to pass through. This is called what?

4. What process does this animation depict?

5. Diffusion is the movement of molecules from a ____ to ____ concentration.

6. Diffusion continues until a point of ___________________, when molecules are equally dispersed through an area.

7. The use of proteins to transport LARGE molecules through membranes is called __________________________.

8. What type of facilitated diffusion is the seen here?

9. Name ONE molecule that moves through a carrier protein to pass through a cell membrane.

10. Name ONE ion that uses a channel to pass through a cell membrane.

11. What molecule uses a special protein called aquaporins to pass through a cell membrane?

12. What type of transport is shown here?

13. What is this internal “pocket” called?

14. What type of transport is shown here?

15. Hypotonic, Isotonic OR Hypertonic?

17. What type of solution is this blood cell being placed in?

18. Why doesn’t a cell membrane allow ALL materials through?

19. Sketch a section of a lipid bilayer. Label polar head, nonpolar tail and integral protein.