Brooke Strowd AP Biology Ms. Butler 28 January 2013 I. Title: Effect of a Catalyst on Reaction Rate II. Introduction: The basis of the experiment is the enzyme; an enzyme is a biological molecule that acts as a highly selective catalyst. By combining with a substrate‚ an enzyme is able to create a new product that helps the body function. (Ex. Lactose/Lactase) A substrate is a molecule an enzyme acts upon‚ the two combine at an area called an active site. This active site allows induced fit
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Oratorical Piece Theme: “Students as Catalysts for Peace” Friends‚ let me begin by quoting you a line lifted from Eleanor Roosevelt. “It isn’t enough to talk about peace. One must believe in it. And it isn’t enough to believe in it. One must work at it.” This ladies and gentlemen challenges Juan De la Cruz‚ the majority common Filipino people. And what is more moiling to this are the sweet and sour additives and influences of the society. My friends‚ as we all know Philippines is somehow ignorant
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There are many reasons why enzymes have such a high specificity. The first variable is an enzyme’s primary structure. A primary structure is just a combination of amino acids. There are twenty different amino acids that the primary structure can be created from. Every enzyme has a different order that the acids are placed in and each one has a different number or amino acids. The slightest change in this structure can affect a protein’s conformation and function. The secondary structure is a regular
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Enzyme Lab Marcus James. December 20‚ 2013 HL Biology 3 Period 1 Purpose and Background The purpose of this lab is to explain how enzymes act as catalysts for biological reactions in different temperatures. This lab relates to enzymes‚ proteins‚ and substrates; that we learned in class. The union of the enzyme and the substrate is called the enzyme-substrate complex. The make-up of an enzyme is proteins and made up of chains and amino acids. Enzymes
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Enzymes Lecture outlines •Catalysis profile •Activation energy & its •Enzyme & substrate substrates •How enzymes bind to •Lock & Key model •Induced-fit model •Enzyme assay Lecture outcomes • At the end of this lecture‚ students are able to: • Define the catalyst • Understand how enzymes work as catalysts‚ the concept of activation energy and enzymes-substrate binding • Explain different theories of the relation between enzymes and substrates Catalysis • It is probably
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the discontent between the two opposing forces‚ Americans and British‚ had been developing for years before the first shots ever had gone off to start the revolution. The reasoning for the tension between the two is traced back to one of the main catalysts being the Stamp Act that was imposed on New England colonies‚ then to one of the last being The Boston Tea Party that ended with British war ships being sent to Boston with attempts to keep in under control. In the beginning‚ New England were
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Enzymes and Their Importance in Plants and Animals Enzymes are large proteins that are responsible for catalysing thousands of metabolic processes that sustain life. Enzymes work similarly to those catalysts used in industry by lowering activation energy and therefore dramatically speeding up the rate of a reaction‚ however‚ these biological catalysts are highly selective to their substrate. Almost every chemical reaction that occurs in a cell requires enzymes in order to occur at rates required
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Kindness – “Catalyst for Change” “Being different is a good thing‚ it means you are special‚” was the phrase I use to hear a lot from my parents growing up. Being one of the few Filipinos among a predominantly white community‚ especially in school‚ it was only a matter of time before I was being confronted with a question about my race. I became conscious about how others identified me. I became aware of my own actions when interacting with others of a different race. I learned that I have to
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In the novel Catalyst by Laurie Halse Anderson‚ there are three main sections‚ Solid‚ Liquid‚ and Gas. The main character‚ Kate‚ is very interested in science and the three titles are a metaphor for her state of mind throughout the book. The first section‚ Solid‚ shows how Kate is a stable and strong person. The next section‚ Liquid‚ is a time where Kate’s life is very inconsistent and she is unsure about herself. The last section‚ Gas‚ shows how Kate has accepted her fate and tries to help everyone
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Medea Revenge is the action of inflicting hurt or harm on someone for a wrong suffered at their hands. It is seen as a ‘wild justice’‚ and as revenge is entertaining (also allowing us to consider our own morals and beliefs) it is an enduring interest in literature. The desire for revenge is an evolved outgrowth of our human sense of unsatisfied reciprocity. Revenge has been evident in the early years of human life. For many tribal cultures‚ is one member of the family was killed or injured‚ it
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