In the dialysis tube there is 25% sucrose/iodine and same thing 25% sucrose/ iodine in the beaker. The initial mass was 11.59 and the final mass was 11.33. So that means that it’s permeable right? To both water and the sucrose/iodine?

In the dialysis tube there is 25% sucrose/iodine and same thing 25% sucrose/ iodine in the beaker. The initial mass was 11.59 and the final mass was 11.33. So that means that it’s permeable right? To both water and the sucrose/iodine?

Human Physiology: From Cells to Systems (MindTap Course List)

9th Edition

ISBN:9781285866932

Author:Lauralee Sherwood

Publisher:Lauralee Sherwood

Chapter15: Fluid And Acid-base Balance

Section: Chapter Questions

Problem 3TAHL

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Concept explainers

Osmosis

In simple words, osmosis is the slow, gradual movement of a liquid through a membrane. But there are nuances to this process. For instance, there has to be an imbalance in the distribution of solute in the liquid on either side of the membrane, which has to be semipermeable. The liquid in the region with a lower solute concentration moves to the region with a higher concentration, thereby displacing the solution in the process. The objective is to equalize the concentration of molecules on both sides of the membrane; the displacement of liquid can be viewed as a byproduct of this equalization. Since there is no energy required to carry osmosis, it is considered a passive process.

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If the dialysis tubing and the beaker solution are both 25% sucrose/iodine it would be isotonic right?
You set up an experiment where you place a sealed (clamped) dialysis tube cell in a beaker of water. The solution in the dialysis tube cell is 25%NaCl solution and the solution in the beaker is 1%NaCl solution. The solvent for both is water. Before you place the tube in the cell, after it has been filled and clamped, you find the mass of the ‘cell’ after carefully drying off any water on the outside or on the clamps. You also find the mass of the cell after it has been placed in the beaker solution for 30 minutes after carefully drying off the outside of the ‘cell’ and clamps. The masses are in the table below. Mass in grams of dialysis tube cell Initial Mass 25.0g Final Mass after 30 minutes 28.7g Using this information, explain the difference in mass before and after submerging the cell in the beaker solution for 30 minutes.
Describe the similarities and differences between the dialysis bag and a cell membrane. Be specific. If you want water to flow out of a dialysis bag filled with a 50 percent sucrose solution what would be the minimum concentration of the beaker solution need to be?
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Table 4. 1.a Diffusion through a Semi-permeable Membrane. Observation Before Immersion After 15 minutes of Immersion Starch solution in the cellophane Iodine in the beaker Table 4.1.b Reaction of Starch to lodine Solution Starch in Iodine Solution Table 4.2. Osmosis Solutions Test Tube 1: 0.9% NaCl (Isotonic) Observe Shape of Red Blood Cells Drawing Test Tube 2: Distilled Water (Нурotonic) Test Tube 3: 3% NaCl (Hypertonic) Conclusion
If molecules are expected to move from high concentration to low concentration, why didn’t all the molecules (solutes) leave the dialysis tubing bag (the test solution was tested negative for one solute)
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The dialysis bag membrane in the figure is permeable to water and to the simple sugars only. The final solute concentration will: • Stay same without change • Reach equilibrium on both sides. • Sucrose concentration will be higher inside the bag. "Environment" 0.01 M sucrose 0.01 M glucose "Cell" • Glucose concentration will be higher inside the bag. 0.03 M sucrose 0.02 M glucose 0,01 M fructose • Fructose concentration will be higher inside the bag.
Osmosis is often defined as the flow of water through a semipermeable membrane, from a dilute solution to a more concentrated solution. Video experiment #1 – saturated sucrose/dialysis tubing/water osmosis from U Mich. https://youtu.be/pCupvFGN4bw A saturated solution of sucrose-containing a red dye is separated from water by dialysis material. What happens to the volume of sucrose solution during the experiment? How do you know that the sucrose solution did not flow into the beaker of water? (Give evidence from your observation of the experiment.) Diffusion, Osmosis, Dialysis video: https://youtu.be/tHzkRtzVmUMDialysis, the flow of both solvent and small molecules or ions through a dialyzing membrane, is important clinically in the operation of the artificial kidney machine.
There are 3 dialysis tubing each containing 8ml of 20% sucrose solution.#1 tubing was immersed in distilled water.#2 tubing wad immersed in 20% sucrose solution while the third tubing was immersed in 40% sucrose solution.what will happen to each dialysis tubing and why it occur
You have dialysis tubing that is permeable to water but not sucrose that contain 10 mL of varying concentrations of sucrose solutions that are placed in a beaker with 100 mL of water. In which beaker/bag combination will osmosis happen the fastest? 10% sucrose solution in the dialysis tubing 20% sucrose solution in the dialysis tubing 30% sucrose solution in the dialysis tubing 40% sucrose solution in the dialysis tubing
In an investigation of osmosis, apple cores were submerged in different molarity solutions to determine the unknown osmolarity of the apple. To determine the molarity five uniform apple cores were massed before submerging them in different molarity solutions. After 24 hours the apple cores were massed again. Then the percent change in mass was determined for the five uniform apple cores in each molarity solution. (b) Identify the osmolarity of the apple.