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In this video, Mr. W demonstrates selective permeability using dialysis tubing, fructose-starch solution, and iodine solution. The video uses animation and explanation to demonstrate selective permeability and to connect it to the molecular characteristics of starch, fructose, and iodine.
This video can be used to help students master AP Biology Topic 2.5 (selective permeability) and it’s a part of the official AP Biology Diffusion and Osmosis Lab.
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