Resonance 1 Williams Lab 1: Tube Staci Williams Kevin Schesing‚ Nicole Harty‚ Caitlin Kubota Section 015 2 Performed February 2‚ 2010 Due February 13‚ 2010 3 Theory: 2.1 Air As A Spring Williams Gas is a springy material‚ and when placed in a cylinder with pistons on each side it can be compressed as pistons push in‚ raising the pressure inside. There will be a net force from the pressure to push the piston back out. Since gas has mass it can support oscillations and waves. 2.2 Traveling Sound Waves
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This experiment was performed to measure the osmosis of small molecules through cellulose bag (has the same structure that plant cell does). This tubing acts as a selectively permeable membrane‚ allowing larger molecules to pass through‚ but slowly. Dialysis is the movement of a solute through a selectively permeable membrane. Purpose: To observe osmosis in a model membrane system. Hypothesis: If I immerse in the beaker containing water one bag with distilled water and one bag with 40% maltose
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Molarities Through Dialysis Tubing (a Semi-Permeable Membrane) I. DESIGN A. PROBLEM/RESEARCH QUESTION 1. How does increasing molarity of sucrose affect osmosis through dialysis tubing? B. VARIABLES 1. The independent variable in this lab is the molarity of sucrose each dialysis bag is filled with. The time (30 minutes)‚ the temperature (23C) and the type of dialysis tubing used are all constants. 2. The dependent variable is the final mass of the dialysis bag.
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utilized in order to identify bacteria (Morello and Granato‚ 2003). In order to test for carbohydrate fermentation‚ tubed broths‚ containing a Durham tube for trapping any gas formed when the broth is incubated‚ are utilized (Morello and Granato‚ 2003). After incubation‚ a color change indicates that an acid product was formed‚ and a bubble in the Durham tube indicates that a gas was formed. In this study‚ carbohydrate fermentation tests for the presence of glucose‚ maltose‚ lactose‚ and sucrose in Proteus
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Apparatus and materials: 1 tube mouth rinse(4 brands)‚ 3 cylinders beetroot‚ 1 pc razor blade‚ 1 pc white tile‚ 10 pcs test tubes‚ 2 pcs test tube racks ‚ 1pc 10-mL measuring cylinder‚ 5 pcs labels ‚ 1 pc forceps‚ 1 pc 500-mL beaker Aim : To study the effect of different brands of mouth rinse on the permeability of the membranes of beetroot tissue Problem: To compare the denaturation of membrane of cells in the effect of mouth rinse of different brands and find out which brand of mouth rinse
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back wheels. Like the back wheel put the gear into its original holding spot‚ then turn the holder over. Taking you small screw driver jam a hole in the long stick at the bottom‚ then place the button on the shot side of the holder. Take the white tube and put the cap back on it‚ then pinch the end with pliers. stick
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For example‚ light bulbs and tubes fail progressively. Retrogressive failure: - If the probability of failure in the beginning of the life of an item is more but as time passes the chances of its failure become less‚ then such failure is said to be retrogressive. Random failure: - In this type of failure‚ the constant probability of failure is associated with items that fail from random causes such as physical shocks‚ not related to age. For example‚ vacuum tubes in air-born equipment have been
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investigate concentration of substrate on catalase enzyme‚ as well to see how they work in different concentrations of hydrogen peroxide (H2O2). Prediction would be‚ that the filter paper discs that were used‚ will rise up to the surface in a time in the tube of different concentration of hydrogen peroxide. And in different concentrations the time will be different. As higher the concentration would be‚ the less time it would take for the filter paper discs to rise to the surface. 2. Experimental design
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|Dialysis Practice Area |% of Test | |A. Clinical |50% | |B. Technical |23% | |C. Environment |15% | |D. Role |12%
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Final Exam Essay Throughout this course I have gained specific knowledge through reading two different books and short stories out of another‚ I had the chance to understand an anthropologist’s point of view. Three ways that cultural anthropologists provide a unique and informative perspective on the social issues they study are: Looking at the circumstances through a participant perspective (avoiding ethnocentrism)‚ historical context‚ and concept of culture. In both Veiled Sentiments and In
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