Lab+4+++ (dragged) 2.pdf - Lab 4 Diffusion and Osmosis Glucose Test Strip n\/a n\/a Greenish BIO201L No change Table 4 Diffusion of Starch and Glucose

Lab+4+++ (dragged) 2.pdf - Lab 4 Diffusion and Osmosis...

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Lab 4 Diffusion and Osmosis BIO201L Post-Lab Questions 1. Why is it necessary to have positive and negative controls in this experiment? It is important to show that the indicator reagent and the starch and glucose used are not faulty . 2. Which substance(s) crossed the dialysis membrane? Support your response with 3. Which molecules remained inside of the dialysis bag? 4. Did all of the molecules diffuse out of the bag into the beaker? Why or why not?
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