The Effect of Concentration Gradient on Osmosis Abstract: Osmosis is the passive movement of water from an area of higher concentration to an area of lower concentration‚ usually across a membrane (Thorpe 2013). Tonicity is the ability of a solution surrounding a cell to gain or lose water (Reece 2011). There are many factors that affect the rate of osmosis. These include temperature‚ surface area‚ difference in water potential‚ pressure‚ light and dark and most importantly what we will be talking
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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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RESULTS AND DISCUSSION REPORT—EXPERIMENT 3 (CHEMICAL KINETICS) CALCULATIONS Effect of Concentration on Reaction Rate [S2O32-]initand [H+]init for each run‚ knowing the original concentrations and volumes of [S2O32-]‚ [H+]‚ and water used. [S2O32-]init= __(M[S2O32-])(V[S2O32-])__ [H+]init= _____(M[H+])(V[H+])____ V[S2O32-]+V[H+]+V[water] V[H+]+V[S2O32-]+V[water] Run 1 [S2O32-]init= (0.15 M)(10 mL) (10+3+2)mL = 0.1 M [H+]init= (3 M)(2
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10 mmol/L | Albumin | 30 g/L | Glucose | 12 mmol/L | Amylase | 5000 U/L --- Normal Range: 60-180 U/L | Serum: Comment: The diagnosis of acute pancreatitis is based on the clinical history‚ evidence of inflammation is known usually by computerized tomography (CT scan) and the finding of a high serum (or sometimes urinary) amylase activity. It is effectively a diagnosis of exclusion: the finding of a very high serum amylase activity is very suggestive but is not on its own diagnostic
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Effects of Sucrose Concentration On Cell Respiration In Yeast Abstract This lab investigates the effects of Sucrose concentration on cell respiration in yeast. Yeast produces ethyl alcohol and CO2 as a byproduct of anaerobic cellular respiration‚ so we measured the rate of cellular respiration by the amount of CO2 produced per minute. The results show a trend wherein increased concentrations of sucrose increase the rate of cellular respiration. Introduction All living cells require energy
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LABORATORY 3 The Effect of Temperature on the Rate of PNPP Hydrolysis Partners: Shelby Cruickshanks Alexis Williamson Introduction Most of the chemical reactions‚ which occur throughout our bodies‚ would proceed at a much slower rate of reaction without the presence of an enzyme. Cells can not wait for centuries for molecules to break down‚ if they waited for that‚ there would be no way for the organism to obtain energy or in turn survive. This is where biological catalyst comes into
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Date: 14th-15th October Title: The effect of the concentration of hydrogen peroxide on catalase Aim: to examine how the concentration of the hydrogen peroxide affects the rate of reaction Hypothesis: The substrate concentration will determine the rate of reaction. The reaction will increase as the concentration increases‚ but from a certain concentration‚ the rate will maintain the same rate Materials: 3% hydrogen peroxide 6% hydrogen peroxide catalase round metal basin measuring cylinder
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Practical Assessment 2 – The effect of substrate concentration on the rate of enzyme activity of Catalase Aim To investigate the effect of substrate concentration (manipulated by increasing concentration of hydrogen peroxide) on the rate of enzyme activity of catalase‚ produced by liver cells‚ on the decomposition of hydrogen peroxide. Introduction Enzymes are biological catalysts that increase the rates of reactions. In an enzyme-catalyzed reaction‚ the substrate binds to the active site and
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Title: The effect of temperature on beet cell membranes. Introduction: 1. Eukaryotic cells are much more intricate than prokaryotic cells. The first thing observed is the assortment of structures in the cytoplasm. The fluid filled region between the nucleus and the plasma membrane. These structures along with the nucleus are the organelles‚ each having a specific function in the cell. The organelles are by membranes divided in proficient sections .The plant cell is made up of a rigid thick wall
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