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
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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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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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Function of Liver * The liver is a part of the digestive system‚ but it does much more than simply process food intake. It is responsible for producing substances that will break down fats and lipids‚ making foods more digestible. vIt also produces several amino acids‚ which are essential to protein production‚ without which a body could not function. The liver produces much of the cholesterol in a body‚ whether healthy or unhealthy. Aside from the liver’s production abilities‚ it also acts as
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occur by moving water through the semi-permeable membranes. If the concentration of sucrose in the solution is less than the concentration of sucrose found in the potato‚ then the potato would decrease in mass. The opposite would occur as well‚ if the concentration of sucrose in the solution is more than that of the potato‚ then the potato would expand and gain in mass. In conducting this as an
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This essay will describe the structure and function of the heart‚ it will also explain the meaning of Atherosclerosis and how it can lead to myocardial infarctions and angina. It will also discuss and identify the factors that can increase the risk of Coronary Heart Disease and how lifestyle changes can prevent it. The main function of the human heart is to pump blood around the body. It is a muscular cone shaped organ‚ the average size of the human heart is the size of a clenched fist and weights
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The Effect of Increasing Temperatures on the Enzyme Catalase Enzymes are proteins that help speed up chemical reactions inside your body and without enzymes‚ chemicals reactions in cells would be incredibly slow to a point where no activity at all takes place (Brawo press Inc‚ 2017). Enzymes speed up the chemical reactions by lowering the activations energy and they do this by binding substrates together in the correct orientation to react (Ernest Z‚ 2014). They are vital for life and serve a
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graph shows that the highest rate of reaction is at pH 7. This therefore supports my theory that at pH 7 the rate of reaction will be highest. This relate to other resources‚ such as books and the internet‚ which show that the optimum pH value for catalase is pH7‚ therefore there is no difference between the optimum pH and the pH used in the experiment‚ hence the enzyme structure is not affected by the pH and is most active. However the graph inadequately supports the second part of the prediction
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Testing Catalase Activity Prepared by Anel Behric For professor Goodrow General Biology Lab Mohawk Valley Community College 10/14/2014 6:00 PM Introduction: This experiment was conducted to examine the breakdown of substrate hydrogen peroxide (H2O2) by catalase‚ which is a specific enzyme that breaks down substrates of (H2O2). Molecules are in our bodies and nature. They move around constantly which causes them to be part of random collisions‚
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