1. S2E5: Osmosis Do This: Have Reading Qs 3.3 ready to grade
Series: Cells
S2E5: Osmosis
Objective: Explain how water moves across a semipermeable membrane
Do This: Have Reading Qs 3.3 ready to grade

2. Passive Transport

3. Passive Transport
Osmosis and diffusion are types of passive transport

4. Passive Transport Osmosis and diffusion are types of passive transport
Does not require energy

5. B. Diffusion

6. B. Diffusion
Movement of molecules across a semipermeable membrane

7. b. Molecules diffuse down a concentration gradient.

8. b. Molecules diffuse down a concentration gradient.
Concentration gradient: gradual difference in amount of molecules

9. C. Osmosis

10. C. Osmosis
Movement of water to areas of higher solute concentration

11. b. Types of solutions:

12. b. Types of solutions:
Hypertonic: more solutes in the solution relative to the cell

13. b. Types of solutions:
Hypertonic: more solutes in the solution relative to the cell
“hyper” = more

14. 2. Hypotonic: less solutes in the solution relative to the cell

15. 2. Hypotonic: less solutes in the solution relative to the cell
“hypo” = less

16. 3. Isotonic: equal solutes both outside and inside

17. 3. Isotonic: equal solutes both outside and inside
“iso” = same

18. Osmosis Lab Complete the Osmosis Lab. Due by the end of the period.
Season Finale!! (aka Quiz next class)
Review homework