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    Induced Fit Theory

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    four most important factors are: inhibitors‚ allosteric factors‚ pH‚ and temperature. There are two types of inhibitors: competitive inhibitors and noncompetitive inhibitors‚ and their names give a good indication of what they actually do. Competitive inhibitors have a similar structure to the enzyme’s substrate‚ so they can "compete" with the substrate for the active site of an enzyme. Often the enzyme will bond not to its substrate but to the competitive inhibitor‚ blocking the substrate from the

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    The temperature of the enzyme‚ the pH of the solution‚ the concentration of the enzyme‚ substrate and the product. Also‚ another affector is the number of competitive and non-competitive inhibitors. As I cannot explain them all‚ I have chosen to explain the effect of temperature and also the effect of inhibitors on enzyme activity. Temperature : As the temperature is increased the kinetic theory is applied. More energy is present and the molecules move fast. This increases the chance of collision

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    Bacteria and Viruses

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    rate when an excess of competitive inhibitor is present (red). Explain why the graph appears as it does. On one hand‚ we have the blue line. It represents an enzyme bonding with its substrate. The line is steep‚ the reaction time is quick. Then we have a red line. The red line represents an enzyme reaction with competitive inhibitor present. The red line is much less steep. The rate of reaction time is longer and slower. Why does the line with the inhibitors appear to slow down reaction time

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    dfdasd

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    Max Pham Mrs. Leslie 30 September 2014 AP Biology Enzymes: Biological Catalysts: Reading Notes 1. Concept: An enzyme alters the activation energy of a reaction Enzyme is 3D – allows it to associate with substrate (molecule that will go thru reaction) Enzyme brings two substrates together in correct orientation (dehydration synthesis) or stresses bonds of substrate (hydrolysis) - lowers activation energy for new bonds to be formed/ broken Different types of cells have different types of enzymes

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    Enzyme and Heavy Metals

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    ENZYME COFACTORS AND INHIBITORS 1. DESCRIBE THE GENERAL ROLE OF COFACTORS IN ENZYME ACTIVITY. Some chemicals enhance an enzyme’s activity‚ which is what cofactors function to do. They are a non-protein component of an enzyme and may be organic molecules (called coenzymes) or inorganic ions. 2. (A) NAME FOUR HEAVY METALS THAT ARE TOXIC TO HUMANS. Four heavy metals that are toxic to humans are: 1. Cadmium (Cd) 2. Lead (Pb) 3. Mercury (Hg) 4. Arsenic (As) (B) EXPLAIN IN GENERAL TERMS WHY THESE

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    Design Experiment

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    Experiment: Enzyme Inhibitors. Research question: What is the effect of adding lead nitrate solution on the activity of amylase enzyme? Aim: To test the effect of adding nitrate solution on the activity of amylase. Background Information: Inhibitors are molecules which repress or prevent another molecule from engaging in a reaction. They are substances that attach themselves onto an enzyme and reduce or prevent the enzyme’s ability to catalyse reactions. Competitive Inhibitors are inhibitors that occupy

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    The all American Dream Everyone has heard of the American Dream‚ this assumption that social transgression is obtainable to any individual‚ non-adherent to that individual’s background. However‚ this bare meaning of the American Dream was the adequate meaning during the 20th century‚ but in today’s terms‚ it exemplifies this sense of hope that any person‚ despite of what life they were born into‚ can ascend to their interpretation of success through diligent work and resiliency. This universal

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    By: Kimberly G. Introduction: In this lab‚ Mr. Greene ’s sixth period AP Biology class split into groups "to investigate inhibition of enzyme activity by specific chemicals called inhibitors" (1). Group three pondered this lab ’s inhibitor‚ phenylthiourea (PTU). Is it a competitive inhibitor? That is an inhibitor that literally "competes" with the substrate by mimicking it‚ and thus "wins" the position at the active site of the enzyme. The blocked substrate in turn cannot join with the active

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    Enzyme Assignement 2

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    molecules (glycylglycine) would be a competitive inhibitor of nylonase because it is polar with a few nonpolar bonds‚ it has a similar structure and it has a few common areas such as N bonded with H and C double bonded with O (which is where its polarity comes from). Because of how similar glycylglycine is to the nylon it would probably very easily bond to the nylonase enzyme that nylon would be a substrate to. It would be a competitive inhibitor because it would easily bond to the same place as

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    Enzymes

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    May 1‚ 2013 Enzymes as Drug Targets Enzymes are defined as any of numerous proteins produced in living cells that accelerate or catalyze the metabolic processes of an organism. Enzymes are usually very selective in the molecules that they act upon‚ called substrates‚ often reacting with only a single substrate. The substrate binds to the enzyme at a location called the active site just before the reaction catalyzed by the enzyme takes place. Enzymes can speed up chemical reactions by up to

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