1. Diffusion

3. Selectively Permeable Membrane

4. Animal Cell (Normal Saline 0.9%)

5. Diffusion experiment Methylene blue MW 320g/mole Potassium permagnate MW 150 g/mole Form Hypothesis T 0 initial diameter T 60 final diameter Activity 1 Room temp Calc. rate of diffusion

6. TimeMB RTMB FRPP RTPP FR T010 mm T6020 mm 10 mm/hr Table 1. Rate of Diffusion in Methylene Blue vs Potassium Permagnate at Room Temp and Fridge

7. Table 2. Rate of Diffusion in Methylene Blue vs Potassium Permagnate at Room Temp and Fridge Group Data GroupMB RTMB FRPP RTPP FR 110mm/hr3 mm/hr 2 3 4 5 Ave SD

8. Create 4 dialysis bags, filled with unknown concentration sucrose solutions (10 ml) Weigh bags and then immerse in 10% sucrose solution (50 ml) Reweigh bags after 30 minutes of experiment Identify the bags containing 0%,10%, 20%, and 40% of sucrose, based on weight changes. Activity 2 Osmosis through semipermeable membrane

9. Unknown solutions of sucrose (0, 10, 20 & 40 %)

10. Dialysis Tubing

11. Weigh pre and post

12. 50 ml 10% sucrose Unknown solution (10ml) (0, 10, 20 & 40 % sucrose solution) 30 minutes

13. Potato Osmosis Experiment Activity 3 10% sucrose 60 minutes