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Enzyme Lab Report Essay

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Enzyme are catalytic proteins whose purpose and function is to accelerate reactions by lowering the activation energy. Enzyme only allows certain reactants to bond with it. In this lab you will be able to see the reactants as it bond with the enzyme. The laboratory method used in this experiment was basics. How fast can the Enzyme move through to produce? In the lab we are going to use Hydrogen peroxide and enzyme catalase and water, the catalase is used to break down the Hydrogen peroxide and the oxygen in the water. You will be able to see as the oxygen produce in the reaction chamber and travel through the hose and up the graduated cylinder. We are going to capture the oxygen gas that being produce in the reaction chamber and see how …show more content…

Nearly all living things possess catalase, including us! This enzyme, like many others, aids in the decomposition of one substance into another. Catalase decomposes, or breaks down, hydrogen peroxide into water and oxygen. The substrate, undergoes a chemical change – the new substance is released from the active site. The active site springs back to its original shape and is ready to receive fresh substrate. For enzymes to operate they must be able to make contact with the substrate; the enzyme or substrate or both must be in solution. Our cells are about 90% water and water is the medium in which most of our biochemistry takes place. The value shows that there is a positive correlation between the rate of reaction and hydrogen peroxide concentration. Catalase, or enzymes, drastically increases the rate of hydrogen peroxide decomposition. This lab shows how catalase added to hydrogen peroxide leads to the release of oxygen, if hydrogen peroxide was required to decompose naturally, life could not survive. The addition of catalase increases this decomposition rate allowing life to continue. For enzymes to operate they must be able to make contact with the substrate; the enzyme or substrate or both must

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The effect of pH on the speed of enzyme interaction with substrate chemicals Hypothesis: About pH: If the pH level is less than 5, then the speed of the enzyme reaction will be slower. About temperature: If the temperature stays the same, then the speed of the enzyme reaction will not be completely affected. Background information: The function of enzymes is to speed up the biochemical reaction by lowering the activation energy, they do this by colliding with the substrate.

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Each amino acid is made up of an amino group, a carboxyl group and a side chain (Reece, J. B., Urry, L. (2016). Campbell biology. Boston Pearson). Enzymes work by lowering the activation energy of the reaction making the reaction produce faster. Enzymes begin to catalyze chemical reactions with the binding of the substrate to the active site on the enzyme.

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The enzyme this lab will be looking at today is the catalase enzyme. Catalase is found among almost all living organisms. The catalase which this lab uses will be a 1% catalase solution but an example of natural catalase is the catalase found in the liver. Catalase reacts with hydrogen peroxide, binding onto it and breaking it down into the less toxic water and oxygen. The equation for this reaction is the following: 2 H2O2 = 2

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