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This set contains a glass thistle tube and a 12" piece of dialysis tubing. The materials are sufficient to do up to three osmosis or diffusion experiments. Instructions are included for one omosis and one diffusion experiment. You provide corn syrup and corn starch for the experiments.
The dialysis tubing is selectively permeable regenerated cellulose. Pores in the membrane permit passage of water, most ions, and small molecules. Particles with high molecular weight, like starch, polysaccharides, fats, and protein are restricted.