Procedure: have a beaker, dialysis tube, test-tape (For recording Glucose levels), glucose, and starch, and Iodine. Fill the beaker with water almost at the top of the beaker and add a bit of iodine. Now test the beaker with the test tape and record the color of the mixture. Then grab a dialysis tube and open one side and then tie the bottom next fill it with 15% glucose and 1%starch then test it with the test tape and now tie the top of the bag and put it in the beaker. Next, wait 30minutes or wait for a distinct color change and record the beaker and dialysis tube again with the test tape.
Claims: the reason the starch didn't get out of the dialysis tube because the size of the molecules were too big for it to pass through the tiny pores of the dialysis tube.
Evidence: The before and after pictures
Research: Diffusion is the movement of particles from an area of high concentration to an area of lower concentration. Osmosis is the diffusion of water from a hypotonic solution across and selectively permeable membrane.
Reflection: Now I know that not everything can pass through a membrane.
Hypotonic definition: having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.
Permeable definition: (of a material or membrane) allowing liquids or gases to pass through it.
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