*To see a web-based tutorial regarding MEMBRANE TRANSPORT click here and go to Exercise 14*
Chapter 7 Learning Objectives:
After studying this material you should be able to:
1. Describe the properties of phospholipids and their unique arrangement in cellular membranes.
2. Describe the fluid properties of the cell membrane and explain how membrane fluidity is influenced by membrane composition.
3. Describe how proteins and carbohydrates are spatially arranged in cell membranes, how they contribute to overall membrane function, and what their individual functions may be within a membrane.
4. Describe the factors that affect the selective permeability of membranes.
5. Describe the locations and functions of transport proteins.
6. Define diffusion. Explain what causes diffusion and why it is a spontaneous process.
7. Compare and contrast diffusion and osmosis.
8. Compare and contrast diffusion and facilitated diffusion.
9. Distinguish between passive and active transport. Give examples of each type.
10. Describe the relationship between a concentration gradient and potential energy.
11. Distinguish between hypotonic, hypertonic, and isotonic solutions. Give at least one example of each type.
12. Define osmosis and predict the direction of water movement based on differences in solute concentrations.
13. Describe the role a cell wall plays in the regulation of water balance in a plant cell.
14. Describe an adaptation for the regulation of water balance in a cell that does not have a cell wall.
15. Explain what mechanism can generate a membrane potential or electrochemical gradient.
16. Explain how the sodium-potassium pump works and why it is essential to the proper functioning of cells.
17. Describe the process of co-transport.
18. Compare and contrast exocytosis and endocytosis and give an example of each.
19. Compare and contrast phagocytosis, pinocytosis, and receptor-mediated endocytosis.