Enzymes (pron.: /ˈɛnzaɪmz/) are large biological molecules responsible for the thousands of chemical interconversions that sustain life.[1][2] They are highly selective catalysts‚ greatly accelerating both the rate and specificity of metabolic reactions‚ from the digestion of food to the synthesis of DNA. Most enzymes are proteins‚ although some catalytic RNA molecules have been identified. Enzymes adopt a specific three-dimensional structure‚ and may employ organic (e.g. biotin) and inorganic (e
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Substrate concentration and yeast catalase Aim: To see how the substrate concentration in hydrogen peroxide affects the rate of an enzyme controlled reaction using yeast catalase. Introduction: An enzyme is a biological catalyst made of protein. Enzymes are protein molecules found in living organisms and in this case I will use a yeast catalase. Catalase is an enzyme that catalyzes the reduction of hydrogen peroxide. Hydrogen peroxide is a poisonous by-product of metabolism‚ so it is very
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General Biology I Spring Semester 2013 Lab Report Name: Date: 03/20/2013 Lab: # Purpose of this lab: To test for the effects of temperature on catalase activity. Introduction: Enzymes are proteins that act as catalysts and help complex reactions to occur everywhere in life. Enzymes affect a chemical reaction by acting as a catalyst‚ which is to say‚ it speeds up the reaction. However‚ extreme ph and temperature hinders enzyme function. Optimal activity of an enzyme is
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There are two ways an interview can be written up. One is as a regular news story (either straight or narrative). The other is in a "Question and Answer" ("Q & A") format. News story style: Choose a Title (HEADLINE) · A good title should have something about the topic of the interview. It may also have a subtitle that includes the name of the person(s) being interviewed (magazine) · Summary of the topic (newspaper) Interviewer/author’s name (BYLINE) Where (geographic
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IB Friction Lab Write Up 3. The slope of my graph represents the constant value for myu as the Normal Force and the force of friction are constantly changing. 4. The kinetic slope is the biggest by far because it represents the less coefficient of friction it has to overcome to move easier. 5. According to my data table‚ an increase in weight always‚ without fail‚ creates a greater force of friction. 6. An increase in weight does not affect the coefficient of friction by also increasing
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the surroundings of enzymes affect their reaction rate? The purpose of the experiment is to determine how different abiotic conditions affect the rate at which enzymes accelerate/cause reactions In this lab students measured the height of the foam after catalysis between catalase (enzyme) and 7 other (solutions) to determine which solution had the fastest reaction rate.. The control variable of the experiment would be the solution of only hydrogen peroxide‚ water‚ and catalase. The independent variables
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Effect of Temperature on Enzyme Activity Bernard Stepteau Biology Lab 101/Th 8:00am – 9:50am 2-26-2014 Dr Laynes Hypothesis: As the temperature of the enzyme catalase rises the activity of the reaction will decrease. Objectives: The objective is to compare catalase activity at different temperatures. Introduction Catalase speeds the breakdown of hydrogen peroxide. Catalase is present in every plant and animal organ. This is useful because hydrogen peroxide is harmful
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milk Introduction Enzymes are globular protein‚ responsible for most of the chemical activities of living organisms. They are made up of long chains of amino acids containing carbon‚ hydrogen‚ oxygen and nitrogen (Gunsch‚ 2012). The role of enzyme is to act as catalysts‚ substances that speed up chemical reactions without being chemically altered during the process. The speeding up of chemical reactions is done by lowering the activation energy required to start a reaction. Enzymes are specific in
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BSC 1005 M-F 12:00 – 1:00 LAB 1- SCIENTIFIC METHOD HOW FAR CAN A MEALWORM CRAWL? Observations: 1. The scientific method allows for an organized and systematic approach to problem solving. It represents the “backbone” of scientific research‚ as well as a useful method in everyday decision making. The steps involved in the scientific method would include‚ but not be limited to‚ the following: 1. Statement of problem 2. Information gathering on research 3. Formulation of hypothesis/possible
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factor given the characteristics of labor-intensive industry. Cultural similarities between India and US includes that they were both British colony‚ hence sharing same language. Not only software programming adopted the English language‚ but also opened up the consulting business model for implementation and future opportunities to expand the market need. Furthermore‚ the lack of infrastructures in India could set back the investment. Such barrier was compensated by the government incentives such as tax
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