Diffusion And Osmosis Lab! :)

The purpose of this lab was to understand the importance of diffusion and osmosis in living organisms. During the process solutes and water are moving in and out of our cells. We also used a bag that people use in the diaylsis called dialysis tubing. Cells need to absorb molecules from the regions in which concentration of the molecule.

Materials needed for this lab was:
 A cup, distilled water, iodine, glucose indicator strips, dialysis tubing, string, scissors, and a small funnel.

Lab Questions:
1) Some of the glucose was left in the bag, yet some escaped, as for the iodine, some did enter the bag. Some proof for that would be when we tested the bag and the cup with glucose test strips. The first attempt in testing it resulted with no glucose being present, the next time we tested it glucose was there, meaning glucose diffused out of the bag. Black was also present meaning iodine was in the bag.
2)The quantitive evidence that would show that water diffused into the bag is the different levels of glucose the glucose test strips show, weigh the bag before and after.
3)If only starch and water were tested outside of the bag and iodine and glucose inside then the bag would be clear on the inside and brown on the outside.