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Mechanisms of Transport (Chapter 5)

Mechanisms of Transport (Chapter 5). Know: permeability , selectively permeable, plasmolysis, solute, solution Fig 5.2, 5.3, 5.5b, 5.7, 5.8, 5.13, 5.23, 5.24. Two categories of cell transport. Passive Transport across membranes does not require energy from the cell and includes three types.

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Mechanisms of Transport (Chapter 5)

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  1. Mechanisms of Transport(Chapter 5) Know: permeability, selectively permeable, plasmolysis, solute, solution Fig 5.2, 5.3, 5.5b, 5.7, 5.8, 5.13, 5.23, 5.24

  2. Two categories of cell transport • Passive Transportacross membranes does not require energy from the cell and includes three types. • Diffusion- • Osmosis-

  3. osmotic pressure

  4. Isotonic Env. Hypootonic Env. Hypertonic Env.

  5. Facilitated diffusion-

  6. Active Transport

  7. Five Kinds of Active Transport • Sodium/Potassium Pump(Figure 5.18 in text) http://www.brookscole.com/chemistry_d/templates/student_resources/shared_resources/animations/ion_pump/ionpump.html

  8. Sodium Potassium Pump

  9. Calcium Ion Pumps– • Proton Pumps – • Exocytosis –

  10. Endocytosis –

  11. Occurs in three ways. • phagcytosis • pinocytosis • receptor mediated endocytosis

  12. Cell Junctions • Involved in cell to cell transport, barriers in between cells, and structural support • 4 kinds • Gap junctions (animal cells)

  13. Gap junctions

  14. Plasmodesmata (plant cells)

  15. Plasmodesmata

  16. Desmosomes (animal cells)

  17. Desmosomes

  18. Tight junctions(animal cells)

  19. Tight junctions

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