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Contractile vacuole Movie

A living cell is put into a surrounding of 100% pure water ( most hypotonic !!) – Where would the water go? 2. What would be the problem for the cell? 3. How might the cell solve it? . J. Contractile vacuole Movie. Contractile Vacuole UC Davis. Passive and Active Transport

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Contractile vacuole Movie

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  1. A living cell is put into a surrounding of 100% pure water (most hypotonic!!) – • Where would the water go? 2. What would be the problem for the cell? • 3. How might the cell solve it? J. Contractile vacuole Movie Contractile Vacuole UC Davis

  2. Passive and Active Transport Across the Cell Membrane

  3. Passive Transport Transport DOWN the Concentration gradient: From high to low. 1.Simple Diffusion Example: Water , oxygen 2. Facilitated Diffusion Example: Glucose, Ions

  4. Diffusion: Glucose cannot pass through Osmosis EQUILIBRIUM Channels by Stolaf Passive Active Transport! Glucose

  5. Facilitated Diffusion Glucose Channels open in response to the hormone Insulin EQUILIBRIUM Glucose Transporter Tutorial: Passive and Active Transport

  6. Lets compare: • Diffusion (of oxygen, for exmaple) • 2. Osmosis • 3. Facilitated Diffusion

  7. oC  - Glucose + Comparing In terms of: 1.Direction 2.Energy Source 3. What’s moving? 4.Protein? Osmosis Diffusion   O2… H2O  Notes     Facilitated Diffusion

  8. Active Transport  Transport UP the Concentration gradient: From low to high. 1. Pumps(Charged Ions) 2. Endocytosis(Large particles) 3. Exocytosis(Large particles) Notes

  9. Ion Pumps  Maintain a membrane potential with a more negative ions inside and more positive ions outside. Transport Animation (password) Active Transport Animation Tutorial Pumps - by Stolaf Na/K pump simple animation

  10. Endocytosis Endocytosis of LDL Phagocytosis Simplified

  11. Exocytosis Exocytosis animation

  12. Try yourself - Active or Passive? Transport Animation (and more!) Diffusion Channel Osmosis Antiport Symport Symport

  13. N Transport of Proteins Inside the Cell: Vesicular Transport Problem: How do we get a new protein from the center of the cell to the membrane? ? Solution: Vesicular Transport Protein Transport - ER and Golgi

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