This activity provides information on the passage of water through selectively permeable membranes. Simple diffusion does not require energy and moves from a high level to lower the concentration. Molecules diffuse passively through the plasma membrane only if they are small to pass through the membrane. Solute concentration, as well as molecular weight, can affect the rate of diffusion. The dialysis membranes used in this activity have different MWCO. Think of MWCO of pore size the larger the molecular is, the larger the pore size. Also the same to the larger the molecular weight, the greater the mass. In this experiment, we will see four different kinds of solutes sodium chloride, urea, albumin, and glucose. There will be four different MWCO …show more content…
Second, the left beaker was filled with 9 mm of urea concentration, and the right beaker was filled with deionized water the MWCO was at 20 there was no diffusion. Thirdly, the left beaker was filled with 9mm of sodium chloride concentration, and the right beaker was filled with deionized water the MWCO was at 50 equilibrium was reached at 10 minutes. Then, the left beaker was filled with 18 mm of sodium chloride concentration, and the right was filled with deionized water the MWCO was at 50 equilibrium was reached at 11 minutes. Then, the left beaker was filled with 9mm of sodium chloride concentration, and the right beaker was filled with deionized water the MWCO was at 100 equilibrium was reached in 10 minutes. Then, the left beaker was filled with 9 mm of urea and right beaker was filled with deionized water the MWCO was at 100 equilibrium was reached at 16 minutes. Then, the left beaker was filled with 9 mm of glucose concentration and the right beaker with deionized water MWCO was at 200 equilibrium was reached in 36 minutes. Lastly, the left beaker was filled with 9 mm of albumin concentration and the right with deionized water MWCO was at 200 no diffusion …show more content…
Second, the left beaker was filled with 8 mm of glucose concentration the glucose a carrier was at 500, equilibrium was reached in 58 minutes. Thirdly, left beaker was filled with 2 mm of glucose concentration, glucose carriers were at 700, and it reached equilibrium at 33 minutes. Then, left beaker was filled with 8mm of glucose concentration, glucose carriers were at 700, and equilibrium was reached at 43 minutes. Then, glucose carriers were decreased to 100, 10mm of glucose concentration filled the left beaker, and equilibrium was not reached there was not enough carriers. In the first five trials, the right beaker was also filled with deionized water. Finally, left beaker was filled with 2mm of glucose concentration, right beaker was filled with 2mm of sodium chloride, the glucose carriers were at 700, sodium chloride reached equilibrium in 8 minutes and glucose reached equilibrium in 33