1 Fig Cell membrane. Look for proteins, phospholipids, and carbohydrates.

2 Fig Simple diffusion.

3 Fib Molecules can diffuse through the cell membrane.

4 Osmosis How is osmosis like diffusion? How is osmosis not like diffusion?

5 Filtration What force moves water by filtration?

6 Carrier-mediated transport A carrier is something in the membrane that moves molecules through the membrane. What type of molecule would you expect to be a carrier?

7 Fig Facilitated diffusion. What type of molecule facilitates the diffusion of the glucose through the cell membrane?

8 Fig Active transport. What type of molecule in the membrane accomplishes this?

9 Fig Receptor- mediated endocytosis is a form of bulk transport. What type of molecule is the “receptor”? What are the other forms of bulk transport?

10 Fig Pinocytosis and phagocytosis. Where have we seen these processes before?

11 Fig See how the lysosome is involved with the process of endocytosis. Is the endocytosis illustrated here called pinocytosis or phagocytosis?

12 Fig Exocytosis. Notice the importance of the Golgi in this process.