1. Osmosis Notes (page 10)

2. Osmosis Notes (page 10)
• Diffusion = movement of particles from an
area of high concentration to an area of low
concentration

3. Osmosis Notes (page 10)
• Diffusion = movement of particles from an
area of high concentration to an area of low
concentration
• Osmosis = The diffusion of water

4. • Note: [ ] = Concentration

5. • Note: [ ] = Concentration
• [Solute] + [Water] = 100%

6. • Note: [ ] = Concentration
• [Solute] + [Water] = 100%
• Example:
– Pure water: 0% solute, 100% water
– Ocean water: 3% solute, 97% water

7. Types of solutions
• Isotonic: [Solutes] in solution = [Solutes] in cell

8. Types of solutions
• Isotonic: [Solutes] in solution = [Solutes] in cell
• Hypotonic: [Solutes] in solution < [Solutes] in cell
Water flows IN to cell

9. Types of solutions
• Isotonic: [Solutes] in solution = [Solutes] in cell
• Hypotonic: [Solutes] in solution < [Solutes] in cell
Water flows IN to cell
• Hypertonic: [Solutes] in solution > [Solutes] in cell
Water flows OUT of cell

10. Output (page 11)
• Draw the following diagram and then answer the
questions
Solution
10% solute
90 % water
W
Cell
2% solute
98% water
• Is the solution iso, hypo, or hypertonic?
• Draw an arrow showing the direction the water will
flow
• Will the cell shrink, swell, or stay the same size?

11. Egg Demo (pg 11)