Cirrhosis of the Liver Cirrhosis of the Liver: Causes‚ Detection and Prevention University of Phoenix- Online Campus Cirrhosis of the Liver is a horrible disease that takes the lives of many people every year. There are many causes‚ symptoms‚ ways to diagnose and treatments that surround this disease as well as many ways that this fatal disease can be prevented. The liver is a key organ when it comes to making the body function properly (National Digestive Diseases Information Clearinghouse
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HL -Functions of the Liver Essay The liver receives its blood from two main sources; the hepatic artery and the hepatic portal vein. The hepatic artery transports oxygenated blood from the left side of the heart through the aorta to the liver. The deoxygenated blood from the liver is drained back out through the hepatic vein which returns it to the vena cava. The hepatic portal vein carries nutrient rich blood from the small intestine to the liver. Its blood however‚ is
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Effect of the Changes in the Environment to the Functionality of the Enzymes Introduction a. Background In our everyday lives‚ enzymes are used in our bodies‚ and in nature around us‚ to speed up the chemical reactions happening constantly‚ which happens by lowering the amount of activation energy needed to start various reactions. The way this works is by attaching the particular substrate to the active site of the enzyme‚ where it will start to aid the chemical reaction. Then‚ the allosteric
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Liver Transplant Surgery Risks and Benefits By; Daniel Allred January 5‚2010 7th Grade Science Core 2 Mr. Wright Organ transplants are some of the hardest surgeries that doctors can do. They require many trained personnel‚ time‚ and complicated procedures. Liver transplants are among the most difficult organ transplants that can be done. There are also many risks involved with the surgery and patients must face all of them in order to come out with a new and working liver
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effects of catalase under varying controlled conditions. The scope of this experiment includes Metabolic processes‚ such as cellular respiration‚ and it poisonous byproduct hydrogen peroxide. The methodology includes procedures; multiple variables were tested in specific concentrations; that test the reaction rates of the enzyme catalase over a fixed period of time. The major conclusion was that catalase reacts faster in warm temperatures that are neither freezing nor boiling‚ catalase performs well
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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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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 rate of catalase activity The extent at which environmental factors affect the rate of catalase activity was discovered in this lab. The assay system‚ in which a filter paper disc was dipped into the enzyme and submerged using a stirring rod in a test tube filled with 20mL of hydrogen peroxide‚ was used to test several enzyme factors. As the saturation of hydrogen peroxide increased the rate of reaction increased as well. When the enzyme concentration increased the rate of catalase activity
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The Catalase Lab Stephen Human Anatomy & Physiology 9/30/12 Problem- How do different environments affect the reactivity of catalase? Hypothesis- If more catalase is added then more oxygen (kPa) will be produced in a faster rate because there is more catalase to react upon. If less catalase is added then less oxygen (kPa) will be produced in a slower rate because there is less catalase to react upon. Variable- Independent- Amount of Catalase (Filter Paper) Dependent- Amount of
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Enzymes are naturally occurring biological catalysts that are extremely efficient and specific. Enzymes accelerate the rate of a reaction by factors of at least a million as compared to the same reaction without the enzyme. Most biological reaction rates are not perceivable in the absence of the enzyme. The term enzyme was first used by a German pshysiologist Wilhelm Kühne in 1897. There are over 700 different kinds of enzymes that have been identified. Enzymes can be classified into several categories
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