1. Osmosis – a special type of diffusion Lesson objective I will know what osmosis is
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3. Results Solution Mass Before (g) Mass After (g) Mass Difference (g) 0.3M sucrose 1.0M sucrose Distilled water
4. Diffusion is the spreading of the particles of any substance in solution, resulting in a net movement from a region where they are of a higher concentration. (end up with even spread of particles)
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7. Osmosis Dilute Solution Concentrated Solution Net movement of water The water will move into the concentrated solution until both are equal. The solutions are said to be ISOTONIC Solute Water
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9. Illustrate with diagrams to describe how water moved across a semi-permeable membrane in each case
10. Conclusion No net movement - Isotonic Potato loses mass - flaccid Potato gains mass - turgid Potato 0.3M Potato 1.0M Potato Water Sucrose Water
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