the education system was not the best. Many of these neighborhoods were shared with other groups such as African Americans‚ but segregation
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Abstract This experiment is to study and measure the enzyme activity of β-galactosidase in the different concentrations of o-Nitrophenylgalactoside (ONPG) using a spectrophotometer. The spectrophotometer was also set at 420nm‚ a wavelength which is best for recording the absorbance values for the experiment. From the results‚ 0.9mM ONPG solution has the highest absorbance and 0.1mM ONPG solution has the least. Also‚ 0.5mM ONPG solution has the highest rate of enzyme activity and it is the most efficient
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The 1930s‚ a manic and mundane time‚ a time of retrogress and innovation. The fate of the american dream in peril. The 1930s started out disastrous. The stock market crashed in 1929‚ which led to a nationwide panic. This is more evident in the photos that have been taken during these times‚ the level of poverty and hunger were at an all time high. The invention of Hoovervilles created innovation in the form of retrogression because Hoovervilles were destitute‚ but they were a necessary adaptation
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This experiment is to determine the unknown DNA plasmid using restriction enzymes and conducting electrophoresis finally comparing the resulting fragments with the known restriction map. In this lab‚ it succeeds in showing the fragments. In this report we will discuss the‚ results‚ limitations and possible errors. Introduction In biology restriction enzymes are used in several ways to modify and manipulate DNA molecules. One common use is to compare pieces of DNA from one that is unknown‚ with fragments
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Catalase Lab Introduction: Catalase is an enzyme normally found in many plant and animal tissues. Its purpose is to destroy toxic substances which may be introduced into cells. Also‚ some cells use catalase to destroy cellular debris or worn out organelles. In this lab‚ we will use a catalase solution from potatoes and determine the effect of temperature and pH on the action of this enzyme. The substrate of the enzyme will be 3% hydrogen peroxide (H2O2). Catalase works by the following mechanism:
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the Save a Copy button on the panel above to save your report) Activity: Enzyme Activity Predictions 1. Sucrase will have the greatest activity at pH 6 2. Sucrase will have the greatest activity at 60 °C (140 °F) 3. Sucrase activity decreases with increasing sucrose concentration. Materials and Methods Effect of pH on Enzyme Activity. 1. Dependent Variable. amount of product (glucose and fructose) produced 2. Independent Variable. pH 3. Controlled Variables. temperature; amount of substrate
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The "Iron Curtain" was a metaphor that Winston Churchill used to describe the dark times that had fallen on Europe. Much of Eastern Europe had fallen to Soviet Control‚ from East Germany and Poland to Russia. This had to do with the Cold War because the cold war was a rivalry between the USSR and the USA‚ which resulted in Western Europe being a part of NATO (US Allies) and Eastern Europe was part of the Warsaw pact (USSR). The iron curtain severed the ideologies of Communism and Democracy. Because
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A unique set of abiotic factors‚ particularly climate and a characteristic assemblage of plants and animals define each of these biomes. One of the many biomes that caught my eye was the tropical savanna‚ the tropical savanna receives more seasonal rainfall then deserts but a cover of grasses characterizes less than tropical dry forests‚ tropical savannas‚ or grasslands. Savannas are spotted with isolated trees and small groves of trees and shrubs. Compact soils‚ fairly frequent fires‚ and the
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of this experiment was to find the relationship between temperature and the enzyme activity of amylase. This was achieved by attaining amylase enzyme‚ starch solution and potassium iodide (determines if enzymes hydrolyses the starch solution)‚ water bath and a hot plate. The temperatures used for this experiment were room temperature‚ 37oC‚ 60oC‚ 80oC‚ and 90oC. The hypothesis developed was that as the temperature increased‚ so will enzyme activity. Therefore‚ the ability of the enzyme to break
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Youmans conducts two experiments trying to prove his apotheosis that students aware of plagiarism-detection software will be less inclined to plagiarize compared to students unaware of the software. In his first study he chose to use nienty university students from California state university majoring in their junior year of psychology. Half of the students were warned that their papers would be checked by plagiarism-detection software and the other half was not made aware that it was going to be used
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