5. Three Types of Cellular Transport

6. Facilitated Diffusion
Movement of solutes across the plasma membrane requires aid of TRANSPORT PROTEINS
Movement is still passive, but assisted and moves in accordance to the concentration gradient

7. Review: Semipermeable Membranes & Osmosis

8. Permeable v. Impermeable
Water
Glucose
Potassium/Iodine Ions
Starch

9. Elodea In Fresh v. Salt Water

10. Plant Cell In Distilled Water v. RBC

11. Limnic v. Marine Paramecium

12. How do you move materials against a concentration gradient?

13. OSHIYA

14. ACTIVE TRANSPORT
Movement of solutes across the cell membrane AGAINST the concentration gradient
Requirements
Carrier Protein specific to the solute
Energy reserves (ATP)

17. Jens Christian Skou
Dissected 25,000 crab nerves to discover the connection between of the sodium-potassium pump and anaesthetics
Nobel Prize 1997

18. Active Transport of Macromolecules

21. Pinocytosis = “cell drinking”

22. Reverse Osmosis
Artificial active transport in which a solution is forced to pass through a semipermeable membrane which filters out some particles while letting others pass
Used for desalination, concentration of milk and maple syrup, car washes (to prevent spotting) and removing chlorine from water for aquariums

23. Reverse Osmosis

24. Online Simulation: Active, Passive & Facilitated Transport
1) Access the website on your handout
2) Review the four sections on passive diffusion, facilitated transport, osmosis and active transport
3) Answer the questions in your lab notebook (Hon Bio only), using 1-2 complete, concise sentences