cell membrane
Distilled water will move out of the dialysis bag and into the sucrose solution due to osmosis and the fact that the dialysis bag has a hypertonic solution of H2O as compared to the sucrose solution.
If you place a dialysis bag filled with water into a beaker of water, there will be no significant change in the dialysis bag's contents, as both are isotonic. Since there is no concentration gradient for water to move across the semi-permeable membrane of the dialysis bag, osmosis will not occur. The bag will remain filled with water, and the surrounding water in the beaker will remain at the same level. However, if the dialysis bag contains solutes that are not present in the beaker, osmosis may occur, leading to a change in the bag's volume.
molecular weight higher than the pore size of the tubing or dialysis bag material doesnt go.
Rinsing the dialysis bag with water helps to remove any residue or impurities that might be present on the surface of the bag. This helps to ensure that the dialysis process is not contaminated and that the results are accurate.
A semi permeable plasmodial membrane
Cl- and glucose
If your talking about a high concentration (outside the dialysis bag) to low concentration (inside the dialysis bag), then it's simple diffusion because it does not requires any energy, and not facilitated in any way
The water in the dialysis bag would diffuse out into the molasses solution. This is because there is a high concentration of water inside the dialysis bag and a a lower concentration of water in the molasses solution. By diffusion or osmosis, the water would tend to move from the concentrated bag to a less concentrated solution.
Rinsing the dialysis bag serves to remove any residual substances or contaminants that may interfere with the experiment or treatment. It helps to ensure that the environment inside the bag is clean and free from impurities, allowing for accurate diffusion of solutes during the dialysis process. Additionally, rinsing can help maintain the integrity of the semi-permeable membrane by preventing clogging or buildup of unwanted materials.
In the dialysis tubing bag experiment, if glucose and I2KI are present inside the bag, the color of the I2KI solution will turn blue-black due to the reaction of iodine with starch present in the glucose solution. This color change indicates the presence of glucose inside the bag.
You can collect quantitative data by measuring the change in mass of the dialysis bag before and after placing it in water. Water diffusing into the bag will increase its mass as it moves from an area of high to low concentration. By calculating the difference in mass over time, you can graph the rate of water diffusion into the bag.
You can determine if iodine entered the dialysis bag containing starch by performing a simple iodine test. Add a few drops of iodine solution to the bag. If the iodine turns blue or purple, it means that iodine has entered the bag and reacted with the starch inside.