1. Unit 4- Homeostasis & Transport

2. I. Homeostasis: A. B. Examples of factors that must Be kept stable in humans:

3. C. Transport Destinations

4. C. How the body responds to fluctuations:

6. II. The Cell Membrane A. Description 1. 2.

7. 3.

8. Proteins Membrane movement animation Polar heads love water & dissolve. Non-polar tails hide from water. Carbohydrate cell markers Fluid Mosaic Model

9. Outside of cell Inside of cell (cytoplasm) Lipid Bilayer Proteins Transport Protein Phospholipids Carbohydrate chains Animations of membrane structure The Cell Membrane Review

10. A. Passive Transport high low Weeee!! ! III. Cellular Transport

11. 1. (simple) diffusion

12. 2. 3.

13. 2. Facilitated Diffusion 1. 2. Glucose molecules Protein channel

14. Each hole represents a specific protein channel where the surrounding plastic represents the impenetrable lipid bilayer 3.

15. B. Active Transport high low This is gonna be hard work!!

16. Protein changes shape to move molecules: this requires energy! 1. Protein Pumps Show video clip

18. 2. Infoldings of the Cell Membrane

19. a. Endocytosis

22. Vesicle-mediated transport

23. IV. Recap of Cell Membrane A. Main Parts 1. 2. 3.

24. B Drawing w/ functions

25. C. More on Phospholipids

26. * Water moves the fastest In & out of cells compared to other Substances because it can do Simple & facilitated diffusion Water diffuses according to its own gradient. V. Osmosis & Water regulation

27. A. Effects of different solutions 1. Isotonic Solutions

28. Osmosis Animations for isotonic, hypertonic, and hypotonic solutions Osmosis

29. 2. Hypertonic Solutions

30. Osmosis Animations for isotonic, hypertonic, and hypotonic solutions Osmosis shrinks

31. 3. Hypotonic Solutions

32. Osmosis Animations for isotonic, hypertonic, and hypotonic solutions Osmosis swells

33. 4. Who cares? ∙I. V. Solutions Hydrating too much lost at sea

34. 1. Animals: B. How Organisms Deal with Osmotic Pressure

35. Effect of Osmosis on Plant Cells 2. Plants & Bacteria & Fungi

36. 3. Protists

37. 4. Fish

38. Animations of Active Transport & Passive TransportAnimations This is a great review of all the cellular transport processes Types of Cellular Transport