Title: The Effect of Varying Amounts of Substrate and Enzyme on a Reaction Rate Abstract In living organisms‚ certain reactions must take place rapidly to assist life. This occurs because of enzymes‚ because all reactions would take place too slowly to sustain life (Jacklet‚ 237). Enzymes are large protein molecules that catalyze specific chemical reactions without being used up in the process. Each enzyme has a region on its surface‚ called the active site‚ which recognizes a specific
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Biological Psychology Melissa Thompson University of Phoenix Biological Psychology When most hear the words biological/psychology‚ many tend to have trouble rapping their mind around it. Psychology is the study of behavior‚ so how does biology fit into this equation? Well we have to assume that our brain has influence or somehow effects are behavior. In order to prove or disprove this theory‚ we have to research the biology and psychology of both the brain and our behavior. So how do
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Enzymes are catalysts that speed up chemical reaction but are not themselves consumed or changed by the reaction. The cell’s biological catalysts are proteins. Proteins are made up of one or more polypeptide chains that are folded to make an active site‚ an area in which a material to be acted on by the enzyme‚ called the substrate‚ will fit. The temperature‚pH‚ the concentration of enzyme‚ and the concentration of substrate all affect the activity of the enzyme and the rate of the reaction. The
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Enzymes Ashley Njeru Mrs. Booth Tuesday‚ March 19th 2013 SBI 4U INTRODUCTION: The cellular activity of all organisms is controlled through the use of enzymes. An enzyme is a special type of biological molecule‚ usually a protein‚ which speeds up a chemical reaction; most are soluble in water or a dilute salt solution. There are about 4000 different enzymes in a typical living cell. If even one of these enzymes is missing or
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BIOLOGY LAB REPORT (UNIT 7: ENZYMES) GENERAL Enzymes are protein that acts as catalyst‚ lowering the activation energy need for reactions to progress in cells. The reaction can still occur without the presence of the enzyme‚ but at a much slower rate. The activation energy is the minimum amount of energy need for a chemical reaction to occur‚ yielding from a given set of reactants. In enzymatic reactions‚ we have substrates which are reactants of reaction bound to an enzyme. While an active site is
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Lab: Tuesdays at 1pm Enzyme Kinetics Lab Introduction: Enzymes are proteins that will catalyze reactions to make the rate of the reaction occur faster than it would without. It can also make the reaction occur in the first place. Tyrosinase is an enzyme that has a variety of functions and activities. It produces pigments like melanin and others that would be apparent when a fruit is cut in half and it browns. (Bien-etre 3).There is that one function that stands out and the enzyme is continuously studied
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have a huge impact on the communication between cells. Cell communication is a crucial process necessary for cells to carry out various functions. Drugs such as Methylenedioxymethamphetamine (MDMA)‚ known as ecstasy‚ can create barriers or confusion to cells. Cell to cell communication carry messages from signaling cells to target cells. Usually a cell will bind with a target cell through a receptor protein in the plasma membrane of the target cell
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The psychologist taking the biological approach would respond with an explanation of how the brain may be deficient in a certain area. He/she may suggest that there is a chemical imbalance in the brain causing the irrational actions displayed by the criminal. There may be any number of chemicals in the brain that could be off and affecting reactions in the nervous system all the way into the parasympathetic and sympathetic nervous system. Additionally‚ the psychologist may attribute genetic markers
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desirable traits (Anemone‚ 2011). There are two types of adaptations‚ biological adaptation and cultural adaptation. Biological adaptations have to do with our genetics and cultural adaptations are those made by physical objects such as housing‚ clothing‚ and tools. Biological adaptations are traits that get passed on to different generations through natural selection (Anemone‚ 2011). We can look at skin color as apart of biological adaptations and the absorption of UV rays and vitamin D. We get vitamin
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Biological Psychology Biological Psychology The brain is a complex organ that is composed of many even more complex systems. Several theorists and psychologists focus on these systems and the functions of the brain. Scientists are also among those who take an interest in the functions of the brain. Each group digs deeper into researching biological psychology because they are learning more about the history of the field‚ the theorists that have contributed to the understanding‚ and relationships
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