Catalysis Essays

Enzyme Catalysis

Enzymes catalyze nearly all biochemical reactions in living cells (Hein, Best, Pattison, and Arena, 2005). As a catalyst, they regulate the chemical reactions by lowering the needed activation energy (Sackheim and Lehman, 1998). Catalysts facilitate chemical reaction but are not consumed, thus, can be used all over again. This function of enzymes is directly dependent on their three-dimensional structures and on the variables that affect their stereochemistry. It was believed that all enzymes are protein in nature but several findings…

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Effect of Temperature on Lipase

Theory The higher the substrate concentration the more quickly product is produced (rate of reaction increases) until enzyme saturation is reached at which time more substrate has no further effect. Enzymes such as Catalase are protein molecules which are found in living cells. They are used to speed up specific reactions in the cells. They are all very specific as each enzyme just performs one particular reaction. Catalase is an enzyme found in food such as potato and liver. It…

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Enzyme Lab Report

Enzymes are proteins produced by living cells that act as catalysts, which affect the rate of a biochemical reaction. They allow these complex biochemical reactions to occur at a relatively low temperature and with less energy usage. In enzyme-catalyzed reactions, a substrate, the substance to be acted upon, binds to the active site on an enzyme to form the desired product. Each active site on the enzyme is unique to the substrate it will bind with causing each to have…

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The Effect of Ph on Enzymatic Reaction Rate

Abstract Enzymes are affected by changes in pH. The most favorable pH value— the point where the enzyme is most active—is known as the optimum pH. This experiment was conducted to determine the effect of pH reaction rate on an enzyme, catalase, from yeast. The experimental results indicate that the catalase worked best at a neutral pH level of seven (7). Introduction An enzyme is a protein molecule that serves as a catalyst. “The basic function of an enzyme is…

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