1. Movement Through The Cell Membrane

2. How Things Move in and Out of the Cell The cell membrane is selectively permeable, allowing some substances, but not others, to pass in or out of the cell Ways Molecules pass through the cell  1. Directly through  2. Membrane channels  3. Carrier Molecules  4. Vesicles

3. Diffusion Solution: Solid, liquid, or gas consisted of one or more substances (Kool Aid) Solutes: Substance that is dissolved (Kool Aid Mix) Solvent: The Substance that does the dissolving (Water)

4. Process of Diffusion Concentration Gradient: Is a measure of the difference in the concentration of solute in a solvent. Diffusion: is the movement of molecules from an area of higher concentration to a area of lower concentration.

5. Equilibrium Diffusion STOPS at equilibrium. Equilibrium- Is when the concentration of the molecules of a substance is the same throughout a space.

7. Osmosis Osmosis- is the process by which water molecules diffuse across a cell membrane from high concentration to low concentration.

8. Osmotic Pressure

9. Red Blood Cells

10. Facilitated Diffusion Larger Molecules use Carrier Protein to help them pass through the cell membrane.

11. Review Passive Transport Three types of Passive Transport ▫Diffusion ▫Osmosis ▫Facilitative Diffusion

12. Active Transport Requires Energy Types of Active Transport ▫Phagocytosis ▫Pinocytosis ▫Sodium/Potassium Pump

13. Phagocytosis vs Pinocytosis Phagocytosis: When cells take in large particles, (cell eating) Pinocytosis: When cells take in fluid, (cell drinking)

14. Sodium Potassium Pump Pump used to move sodium and Potassium ions from areas of low concentration to high concentration.