ventilator‚ which forces air into the lungs of a patient who cannot breathe on her own. The second type is a pacemaker which is used for those who have irregular heartbeats‚ or for those who suffer from an abnormality of the blood vessels. Next‚ there are dialysis machines‚ which are most commonly used for patients who suffer from renal (kidney) failure. A ventilator works by forcing warm‚ oxygenated air into the lungs while removing carbon dioxide. A plastic tube is inserted through the mouth and
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Bag 3 had a rate of osmosis equal to 0.0471 grams per minute. Bag 4 had a rate of osmosis equal to 0.0886 grams per minute. Bag 5 had a rate of osmosis equal to -0.0914 grams per minute (Figure A). Figure A: Shifting of mass in grams for each dialysis bag was measured every 5 minutes for 30 minutes. Bag 1 contained DI H2O and was submerged in DI H2O. Bags 2‚ 3‚ and 4 were submerged in DI H2O and contained 20%‚ 40%‚ 60% sucrose‚ respectively. Bag 5 was submerged in 60% sucrose and contained DI
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of diffusion over time? Why? What can you conclude from this experiment? II. Osmosis Define the following terms. Osmosis EXERCISE 2 – Osmosis demonstration After 15 minutes‚ record the volume change in each tube. Osmometer Dialysis Tube Contents Beaker Contents Volume Fluid Moved Direction of Movement 1 2 Describe the net movement of water in osmometer 1. Describe the net
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The major objective of the experiment was to test the effect of the concentration gradient on the diffusion rate. It was hypothesized that the greater the stronger the concentration gradient‚ the faster the rate of diffusion would be. To test this‚ dialysis tubes were submerged in different concentration fructose solutions. We weighed the tubes at specific time intervals to measure the rate of diffusion of water in each different solution. The results illustrated that increased concentration gradient
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that takes no energy‚ and that osmosis is just the flow of water through the cell membrane. The main purpose of the first experiment was to examine the movement of H2O and other materials in living and simulate systems. This was done through the dialysis tubing to mimic the cell membrane and measure the change of mass inside the tube filled with distilled water. The quantity of mass before and after was measured and saw the amount gained from the outside environment (either saline‚ sucrose‚ or water)
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to make sure that they monitor her hyperkalemia to make sure the levels of potassium stay where they need to so it does not cause the heart to weaken. Treatment should include restoration of the blood volume to normal‚ restricted fluid intake‚ and dialysis. * * Scenario B: Chronic renal failure. Mr. Hodges‚ a 73-year-old man‚ has had congestive heart failure for the past 5 years. His doctor has told him that his heart is not functioning well‚ needing more and more medicine to maintain
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got older and her worries were getting the best of her and were getting in the way of her life‚ and to add to those worries she is on dialysis and goes into the hospital and comes out weak and drained. To get her mind off of all of this she draws‚ it helps get to her happy place in life so she doesn’t think about the worries in her life and going through dialysis. What I have taken way from this story is that dont judge a book by it cover cause some people have it werse then you may have it cause
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through a selectively permeable membrane moves from an area of higher concentration to an area of lower concentration. In this lab‚ we can determine the direction of diffusion of small molecules by measuring the diffusion of small molecules through dialysis tubing. This tubing acts as a selectively permeable membrane‚ and allow to pass larger molecules slowly. Introduction: Cells have kinetic energy and it causes the molecules of the cell to move around and bump into each other. Diffusion is one
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Lab Report #1 Introduction A cell’s plasma membrane is known to be selectively permeable. This implies that the membrane is selective on what substances can pass in and out of the cell. There are two methods of transport that occur through the plasma membrane. One method of transport is called active process which uses ATP energy to transport substances through the membrane. The other method is called passive process which does not require the use of ATP energy. During passive processes
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transport them down the concentration gradient. Hypothesis Activity One: Simple Diffusion- Simulating Dialysis Simple diffusion will occur between different concentrations until equilibrium is reached. Activity Two: Simulating Facilitated Diffusion Facilitated diffusion will occur between different concentrations. Material and Methods * Two beakers * Membrane holder * Four Dialysis membranes: 20 (MWCO)‚ 50 (MWCO)‚ 100 (MWCO)‚ 200 (MWCO). * Membrane barrier * Four solutes: NaCl
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