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Biology, 23.06.2019 11:00 maxandalexplayz

Starch turns a blue-black color in the presence of iodine. julian decides to use this information to test the permeability of some dialysis tubing. julian fills the tubing with a starch solution and places it in a beaker of iodine and water. after two hours, the starch solution in the dialysis tubing turns blue-black. the iodine solution remains the same color (it doesn't change colors). what do julian's results show about the permeability of the tubing?

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