Homeostasis A state of balance in the body Whoa Homeostasis “the tendency of a system‚ esp. the physiological system of higher animals‚ to maintain internal stability‚ owing to the coordinated response of its parts to any situation or stimulus tending to disturb its normal condition or function” - Dictionary.com Unabridged (v 1.1) “The ability or tendency of an organism or a cell to maintain internal equilibrium by adjusting its physiological processes.” - American Heritage Stedman’s Medical
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EXERCISE 1A: Diffusion The materials include a 30-cm piece of 2.5-cm dialysis tubing‚ 15-mL of the 15% glucose/1% starch solution‚ 250-mL beaker‚ distilled water‚ 4-mL Lugol’s solution‚ and string. EXERCISE 1B: Osmosis The materials used include 25-mL of these solutions: distilled water‚ 0.2M sucrose‚ 0.4M sucrose‚ 0.6M sucrose‚ 0.8M sucrose‚ and 1.0M sucrose‚ scissors‚ string‚ a balance‚ six 250-mL cups‚ and six 30cm strips of dialysis tubing. EXERCISE 1C: Water Potential The materials that
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hypothesis that solutions have a lower freezing point than pure water. The second property observed was osmosis pressure. This experiment used a 6 inch piece of dialysis tubing that was filled 2/3 full with light Karo syrup and tied off. Then it was completely submerged in a large glass bowl of room temperature distilled water. The dialysis tubing acts as a semi-permeable barrier and water passed through to inside the tube and over the next several hours‚ this act caused the tube to swell. Osmosis
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surgery ‚ and failure of the donor kidney. Once you get used to your treatment‚ you should begin to feel better. The dialysis treatments or transplanted kidney will take over some of the work of your diseased kidneys and remove wastes and extra fluid from your body. This will improve many of your symptoms. Transplantation has many advantages. It eliminates the need for dialysis and helps patients enjoy a life filled with more freedom‚ energy and productivity. Although most patients are on
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explain experimental data concerning different concentration gradients‚ (3) To complete a data table and prepare a graph to illustrate the data‚ and (4) To apply information from this experiment to other related problems. MATERIALS: 6 pieces of dialysis tubing Sucrose solution concentrations of 0M‚ .2M‚ .4M‚ .6M‚ .8M‚ 1.0M String Balance 6 beakers or plastic cups
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intravenous antibiotics and a subsequent exchange of her right subclavian dialysis catheter over a guide wire. Two weeks later‚ the patient again presented to the same outside hospital where she was still found to be bacteremic and her dialysis catheter was exchanged for a second time in which a left subclavian dialysis catheter was placed. After placement of the dialysis catheter‚ the patient had three incomplete dialysis sessions that were cut short due to patients complaint of chills and shortness
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Chronic Kidney Disease BIO 105‚ sec M02 Prof. Palanca Ayo Powell (Term Paper) 3/25/12 The Kidney is one of the most important organs in the human body. Its primary function is the removal of waste & toxins from the blood stream. So if the kidney stopped working correctly and is no longer able to properly function that would lead to serious problems. Blood is no longer being cleaned. The waste and the toxins aren’t being removed. Instead it’s all building up in the blood stream causing
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the molecular collisions speeding up the experiment in the time period given because of the Soule molecules found within the given volume. This experiment can also refer to hypo‚ hyper and isotonic due to the two solutions being separated by the dialysis tubing (which acts as a semipermeable membrane) and diffusing from
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LAB EXERCISE: Diffusion and Osmosis Laboratory Objectives After completing this lab topic‚ you should be able to: 1. Describe the mechanism of diffusion at the molecular level. 2. List several factors that influence the rate of diffusion. 3. Explain why diffusion is important to cells. 4. Describe a selectively permeable membrane‚ and explain its role in osmosis. 5. Define hypotonic‚ hypertonic‚ and isotonic in terms of relative concentrations of osmotically active substances. 6. Discuss
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reached. The steeper the gradient the faster the rate of diffusion. There are a few types of diffusion. Three (3) of those are: Facilitated Diffusion- refers to diffusion of substances across a cell membrane with the help of transport protein. Dialysis- refers to the diffusion of solutes across a semipermeable membrane. Osmosis- refers to the diffusion of the solvent across semipermeable membrane. The concept of diffusion is widely used in physics (particle diffusion)‚ chemistry‚ biology‚ sociology
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