Economics is a driving force in history. Empires‚ nations‚ and peoples have been conquered due to the lack of economic power and progress. Since the beginning of the American economic system‚ our nation has been based upon a Capitalistic Economy‚ which is fundamentally based on one’s self-interest. Without a prosperous economic system‚ a country cannot be a withstanding force politically‚ militarily‚ nor seen as a respected‚ influential nation when addressing world conflicts. Before negotiations
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Accidental Discoveries in Medicine Over the years‚ there have been many new advances in technology‚ food‚ and medicine. While things like the computer‚ the internet‚ and television were found to an extent on purpose; there have been a number of accidental discoveries in these areas as well. When thinking of accidental discoveries in the modern world‚ one may struggle to come up with anything. This could be that people are not educated with the origin of every-day items that are taken for granted
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"\ Discoveries reveal once hidden aspects of ourselves and others ** Discoveries that are acquired through struggle and adversity can provide a unique and lasting impact if the individual is receptive to these experiences Discovery of self can lead to fresh and meaningful understandings of our relationships and our place within the wider world ‘Discoveries can be fresh and intensely meaningful in ways that may be emotional‚ creative‚ intellectual‚ physical and spiritual.’ Discovery is a
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Aquaporins are "the plumbing system for cells‚" said Agre. Every cell is primarily water. "But the water doesn’t just sit in the cell‚ it moves through it in a very organized way. The process occurs rapidly in tissues that have these aquaporins or water channels." For many years‚ scientists assumed that water leaked through the cell membrane‚ and some water does. "But the very rapid movement of water through some cells was not explained by this theory‚" said Agre. Aquaporins selectively conduct
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structures of cells but they act as enzymes in reactions of the body1. Enzymes are biological catalysts that lower the amount of activation energy needed in carrying out biochemical reactions1. Enzymes are responsible for almost every reaction that occurs in a cell and is named according to the substrate they specifically affect. An enzyme works best under optimal conditions pertaining to temperature‚ pH level and salt concentration1. In unfavorable conditions enzymes will become denatured and ineffective
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The bonding of an enzyme to its substrate forms an enzyme-substrate complex. The catalytic action of the enzyme converts its substrate into the product or products of the reaction. Each reaction is extremely specific‚ distinguishing between closely related compounds‚ including isomers. For example‚ the enzyme sucrase will only act on sucrose and will not bind to any other disaccharide. The molecular recognition of enzymes is due to the fact that they are proteins‚ which are defined as being macromolecules
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prehistoric and well preserved mummy in the world‚ not since Tutankhamen had anything stunned the world this much. After the discovery of Otzi‚ many questions started arising‚ the main focus question was- Why else was the Iceman such a significant discovery? Many issues also came up; some issues to be discussed include the ethical issues‚ scientific issues‚ and heritage issues. The discovery was overwhelming to the scientific world and the people in the world‚ there were many theories and speculations to what
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Factors Affecting Enzymes The activity of an Enzyme is affected by its environmental conditions. Changing these alter the rate of reaction caused by the enzyme. In nature‚ organisms adjust the conditions of their enzymes to produce an Optimum rate of reaction‚ where necessary‚ or they may have enzymes which adapted to function well in extreme conditions where they live.Increasing temperature increases the Kinetic Energy. In a fluid‚ this means that there are more random collisions between molecules
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Enzymes are catalytic proteins that speed up chemical reactions by lowering the activation energy of the reaction. our body cells depend highly on enzymes to complete many important functions‚ such as digestion and metabolism. Enzymes are selective‚ in which each enzyme can only speed up a specific reaction. There are molecules that enzymes work with called substrates. substrate bind to an area of an enzyme called active site. There is specificity between the enzyme and substrate that react with
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Introductory Biology 1 Biology 1003 Fall Term 2011 Lab Number: 3 Title: Cell Energetics: Enzyme Role in Biological Reactions Name: Brandon Moore Student Number: 100819124 Lab day and time: Wednesday pm Date: Wednesday November 23‚ 2011 Introduction Enzymes are a key aspect in our everyday life and are a key to sustaining life. They are biological catalysts that help speed up the rate of reactions. They do this by lowering the activation energy of chemical reactions (Biology
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