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Lab 1: Diffusion and Osmosis
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The selective permeability of membranes is of fundamental importance to cellular physiology. Students will perform experimental procedures involving diffusion, dialysis, water potential and osmotic potential. For 10 lab groups. Duration: 60-90 minutes or two lab periods.
Kit contents:
- Sample A: orange dye
- Sample B: violet dye
- M Sucrose/1 M NaCl solution
- Powdered sucrose
- Dialysis tubing
- Instructions
Required, but not included: beakers, 1, 5 and 10 mL pipets, thermometers, scales, cork borers or small kitchen knives, graph paper, distilled or deionized H2O, potatoes.
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