semi-permeable membrane? In this lab study we tested carbohydrates such as starch and glucose‚ as well as solutions like Benedict’s and Lugol’s to see if they would cross the membrane of a cell but since we can’t actually see that happen we used dialysis tubing (acts as the cell membrane). • My prediction was that glucose and Benedict’s could pass the semi-permeable membrane but starch and Lugol’s wouldn’t be able to. • The purpose of this study is to be able to identify what molecules can pass
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Measure and pour 50 mL of water into a 100 mL beaker. Cut a piece of dialysis tubing 15.0 cm long. Submerge the dialysis tubing in the water for at least 10 minutes. I measured and poured 82 mL water into a second 100 mL beaker. While the dialysis bag was soaking‚ made the glucose/sucrose mixture. Using a graduated pipette to add five mL of glucose solution to a third beaker and labeled it “Dialysis bag solution”. Used a different graduated pipette to add five mL of starch solution
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regent (I2Kl) solution on the outside of the beaker permeates the intestine (Dialysis tubing) inducing a chemical reaction that will turn the liquid in the intestine (Dialysis tubing) blue-black. If the amylase successfully digests the starch‚ what results would you expect? If the amylase successfully digests the starch‚ I would expect a no color change occur as well as a presence of glucose in the intestine (Dialysis tubing). If the amylase only partly digests the starch‚ what would you expect
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Diffusion and Osmosis Through Dialysis tubing We did this experiment to test the diffusion of different substances through dialysis tubing. We used what we knew about diffusion to make predictions on what we thought the mass of the dialysis tubing to be after submerging them for 30 mins and we knew that diffuse occurs from highest concentration to lowest concentration. Since the dialysis tubings are filled with different substances than what they are being put into then they should all gain
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Introduction: This experiment was used to examine the hypothesis that: Osmosis is dependent on the concentrations of the substances involved. Diffusion is the passage of solute molecules from an area of high concentration to an area of low concentration (Campbell & Reece‚ 2005). An example is ammonia diffusing throughout a room. A solute is one of two components in a chemical solution. The solute is the substance dissolved in the solution. The solvent‚ the other component‚ is any liquid in
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OSMOSIS LAB BACKGROUND INFORMATION. Dialysis tubing is being used to model a plasma membrane. Isotonic solutions are solutions that have the same concentration of solutes on both sides of the membrane. Hypertonic solutions are solutions that have more solute to the one with less solute. Hypotonic solution are solutions that have less solute to the one with more solute. RESEARCH QUESTION:which dialysis tubing will gain the distilled water and which one will loss its content
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Dialysis and kidney transplantation are treatments for End Stage Kidney Failure. There are two types of dialysis: hemodialysis and peritoneal dialysis. As the kidneys lose their ability to function‚ fluid‚ waste products‚ and electrolytes begin to build up in the blood. Dialysis is generally planned when their kidney function is <15 percent of normal. KIDNEY TRANSPLANTATION Kidney transplantation is considered the treatment of choice. Quality of life and survival are often better than in people who
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is done by building an imitation of a caterpillar’s digestive tract using dialysis tubing and glassware. The first material in this experiment is a small beaker representing the head and crop of the caterpillar. This beaker is filled with both starch and the enzyme α-amylase. This enzyme digests the starch found in the leaves the caterpillar is eating‚ which breaks it down into glucose. The opening of the soaked dialysis tubing represents the opening between the crop and intestine‚ so you fill the
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G. Y. S. Period: 6 09/11/12 Osmosis Lab I. Objective: The purpose of this lab is to put the solutions in chronological order from least to most molarity. If the solutions are hypertonic then‚ the water will go in and the order of the substances will be C‚ D‚ A‚ B‚ E. II. Materials and Methods: See attached page. Results: Table 1.1 III. Table 1.1 | Initial | Final | % Change | A | 11.4 | 11.86 | 4.03% | B | 11.67 | 15.33 | 33.68% | C | 10.84 | 11.86 | 9.4% | D | 12.02 |
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change in the mass for both the dialysis tubing loaded with the bizarre arrangement and the container of sucrose and water. Demonstrated that dissemination of water had happened over the semi-penetrable dialysis tubing. It’s checked on the grounds that the weight both changed. The outcomes demonstrated to us that spread happened contrastingly for the two arrangements. For arrangement A‚ the dialysis tubing weighed less after osmosis. For arrangement B‚ the dialysis tubing measured more after
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