6. Imagine the experiment below where you placed a dialysis tube (cell) containing 10% NaCl Solution A Dialysis Tube Solution B (solution B) into a beaker of distilled water (solution A). Using what you know about diffusion/osmosis, indicate if the water is going to move into or out of the dialysis 'cell’.
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- Some cells lining tubules in the kidneymaintain normal cell volume bysynthesizing organic solutes. Where inthe kidney would you expect to findthese cells? Explain.A dialysis membrane is selectively permeable, and substances smallerthan proteins are able to pass through it. If you wanted to use adialysis machine to remove only urea (a small molecule) from blood,what could you use for the dialysis fluid?a. a solution that is isotonic and contains only large molecules, suchas proteinb. a solution that is isotonic and contains the same concentration ofall substances except that it has no ureac. distilled water, which contains no ions or dissolved moleculesd. blood, which is isotonic and contains the same concentration of allsubstances, including ureaInvestigate the processes of diffusion and osmosis and how they relate to kidney dialysis. You may also throw in some other daily home applications of diffusion and osmosis if you want to!
- 20. Active transport of a substanceacross a membrane requires A A gradientB the expenditure of ATPCwaterD diffusion1. What is the dialysis tubing selective permeable to? Make a claim and support it with evidence? 2. What is selectively permeable membrane? 3. What is a cell membrane? 4. Give the membrane functions and discuss briefly. 5. How does a dialysis tube dialysis tube represent a cell membrane? 6. Why is the membrane important in a dialysis machine?17. When performing the "rate of osmosis" experiment, your laboratory partner used water-soluble ink on the labels of the dialysis bags. Thus, you cannot tell which bag is which. You know that you have the following concentrations of substances in the dialysis tubing all sitting in beakers of distilled water: 15 ml of distilled water A. B. C. D. 15 ml of 10% sucrose solution 15 ml of 20% sucrose solution 15 ml of 30% sucrose solution The initial weights were for all bags were all around 15.0 grams. The actual initial and final weights after 30 minutes are also shown in the table below. Given the data in the table and assuming no leakage, MATCH THE BAG NUMBER WITH THE PROPER CONDITION by completing the table. EXPLAIN THE PHYSIOLOGY INVOLVED and given the general reason as to why you have matched each bag with the condition. Bag Number 1 2 3 4 Explanation: Initial Bag Weight Final Bag Weight 15.1 23.2 15.0 20.5 15.1 15.0 15.2 17.9 Solution Letter
- If you had a dialysis tube that contained 1.0M sucrose solution and youput it into a beaker containing 0.2M sucrose solution. Which directionwould the water move?If the dialysis tubing and the beaker solution are both 25% sucrose/iodine it would be isotonic right?Match each term in Column I with its correct description in Column II.Column I Column II1. solute2. isotonic solution3. diffusion4. phagocytosis5. osmosis6. benign7. hypertonicsolution8. cancer9. mitosis10. active transporta. cells confined to local areab. has a higher concentration of Nathan a red blood cell doesc. needs ATP for energyd. malignant tumore. solid particles dissolved within afluidf. cell reproductiong. molecules move from higherconcentration to lowerh. has the same concentration ofNa as a red blood cell doesi. engulfs bacteriaj. diffusion of water molecules
- When materials are taken up on one side, brought to the inside of the cell, and eventually excreted on the other side of thee cell, this is known as?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.Using a semi-permeable membrane, dialysis allows the removal of salt ions prior to chromatography. O True False