Wednesday, October 2, 2013

Lab 4: Diffusion and Osmosis

Materials:
-thistle tube 
-dialysis tubing
-corn syrup
-India ink solution
-IKI solution
-Methylene Blue solution
-Bore and agar plate
-IKI and Methylene Blue in agar
-Ohaus Balance
-Glucose solution
-thread
-dialysis tubing
-Cold water bath
-Warm water bath

Exercises:
- Learn where energy comes from for movement of molecules in diffusion
-Learn whether gases diffuse into other gases
-Learn whether liquids diffuse into solids
-Discover whether some membranes are selectively permeable or completely permeable 
- Learn if warming the external environment affects diffusion
-Learn if cooling the external environment affects diffusion

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