Chou‚ P. (2007). The effects of background music on the reading performance of taiwanese esl students. New York: Self Published. Retrieved from http://books.google.com/books?id=zVz_Lv9OnN0C&pg=PA33&lpg=PA33&dq=effects of background music on concentration&source=bl&ots=xRZ4pvia4r&sig=lzJhKQmZfw7WXV-WD1hyJhT9I4A&hl=en&sa=X&ei=I3otUeKHBo_o8gSBooHYAw&ved=0CH8Q6AEwCQ * Hallman‚ Price‚ Katsarou‚ S. J. G. (2002‚ November 2).The effects of background music on
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- - - - - - - - - - - - - Effect of Substrate Concentration on Catalase Aim: An experiment to find out how the concentration of hydrogen peroxide affects the rate of reaction of the enzyme catalase. Background Information: Enzymes such as catalase are globular protein molecules with catalytic properties. A catalyst is a substrate which can alter the rate of reaction without itself undergoing any permanent change. As they are not changed my reactions which they catalyse‚ enzymes
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different sucrose concentrations then the tube with the lowest concentration of sucrose will expand the potato the most because the water will move into the potato to even out the concentration levels of the sucrose/ water ratio inside and outside of the potato was supported by the data. The data shows that the potato submerged in the lowest concentration of the sucrose water solution had the greatest percent change in mass at 15.2% for 0% concentration. Overall‚ the higher the concentration of the solution
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I. Research Question What are the effects of different sucrose concentrations on potato stripes which have been submerged in a range of solute sucrose concentrations. II. Background Information Osmosis is one of the four methods of moving particles across membranes along with simple diffusion‚ facilitated diffusion‚ and active transport. Water is able to move in and out of most cells freely. Sometimes the number of water molecules moving in and out is the same and there is no net movement‚ but at
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Different Concentrations and Effects The goals of this experiment were to examine the effectively of enzymes on samples of different enzyme concentrations and substrate concentrations. In addition‚ the experiment tested how effective enzymes are on samples of pH levels and temperature levels. A. Effect of Enzyme Concentration Hypothesis: With half as much enzyme concentration then the reaction rate will be half as much than when the enzyme concentration is equal to the substrate concentration
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The Effect of Concentration‚ pH and Temperature on Enzyme Activity Biology For Majors October 4‚ 2012 Abstract We examined the reaction an enzyme has when its concentration‚ pH and temperature are altered. In order to do this‚ we added different levels of pH into different test tubes with the enzyme (sucrose)‚ and substrate (sucrose)‚ and we then inverted the tube. The higher pH produced more enzyme activity. Temperature effects enzyme activity by decreasing its stability when the temperature
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from 0.93-1.04 grams from the solutions containing AgNO3 (Table 1). Graph one depicts the correlation of percent change in weight for each sucrose concentration with AgNO3 added. The initial length of the potato cylinders were 2cm as depicted in table two. Graph two depicts the correlation of percent change in length in different sucrose concentrations. The initial weights for the solutions lacking AgNO3 ranged from 1.0-1.7grams (Table 3). Graph three displays the correlation for the percent change
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Effects on Survivors of Concentration Camps Many people during the 1940s were put into concentration camps‚ and after getting out‚ if they did get out‚ suffered many problems. The stress and torment these people went through was pure murder (Nelken). The humans put into these concentration camps were from many different races‚ and also included the mentally retarded‚ severely handicapped‚ insane‚ and very sick people (Austin). Survivors of concentration camps faced psychological‚ spiritual‚ physical
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Does concentration affect the speed of chemical reactions? Problem: We are proving that “concentration” (the amount of reactants) is one of the things that can affect the speed of chemical reactions. We are also finding a way to keep the lid on the film canister for the longest period of time. We are using vinegar and water as reactants and changing the concentration every time to see the difference between the rates of reactions speed. Materials: - 1 graduated cylinder - 1 film canister
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1 The Limits of Amylase 2-1-14 Abstract This report explains the purpose of this experiment in a way that conveys information to the reader about Amylase’s ability to withstand acidic or basic pH. To do this‚ two test tubes were both filled with 5mL of a 5% amylase solution. The first one was filled with an acid‚ while the other was filled with a base. After dropping liquid Iodine and Benedict’s solution into each one‚ the tube with a basic pH tested positive for glucose. The acidic solution
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