1. Do Now! Copy vocabulary words into your notebooks: cell membrane concentration diffusion osmosis equilibrium active transport passive transport

2. DIFFUSION: Active and Passive Transport

3. I Love Science Another Presentation @ 2006-All Rights Reserved

4. What is the other name for the Cell Membrane?
Fluid Mosaic Model

7. Passive Transport Does osmosis or diffusion require energy?
No, molecules move along a concentration gradient.

8. Facilitated Diffusion
Facilitated Diffusion- molecules move down a concentration gradient with the aid of special proteins.

9. Active Transport Requires Energy.
ATP (form of energy made by mitochondria).
Moves against the concentration gradient.

10. Endocytosis
Transporting material into a cell by the in folding of a membrane.

11. 2 Types of Endocytosis
Phagocytosis- Solid particles are ingested into the cell.
Pinocytosis – liquids taken into the cell.

12. Exocytosis
Moves materials out of the cell

14. Let’s Go to the Video!

15. One More Time!

16. Summary What is Diffusion? What is Osmosis? What is Active Transport?
What is Passive Transport?

17. HW
Complete class handouts.