In the diffusion experiment, glucose is leaving the bag, proven by using the glucose test strips in the beaker while Iodine Potassium-Iodine and water is entering the bag, proven by the change of color and the increase in size of the bag. Based on the observation, water molecules would be the smallest and then IKI, glucose, membrane pores, and starch molecules as the biggest. This show how small molecules like IKI, water, and glucose was able to pass the selective permeable membrane. On the other hand, bigger molecules like starch did not move very slowly or not at all because they were too big for the membrane pores. IKI and glucose move from high to low concentration while water move from region of high water potential to region of lower
