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Discussion and Conclusion:
During Lab 1A, the data suggests what molecules can and cannot diffuse across a selectively permeable membrane. The coloration showed that the Iodine Potassium Iodide was small enough to pass through the pores of the membrane because the color of this indicator moved from within the beaker to in the bag. Water and glucose moved out because water is small enough to pass through the membrane and the glucose tested positive with the Testape inside the beaker. The glucose at the beginning was only in the bag, so it obviously moved out.