Ligaments.—The liver is connected to the under surface of the diaphragm and to the anterior wall of the abdomen by five ligaments; four of these—the falciform‚ the coronary‚ and the two lateral—are peritoneal folds; the fifth‚ the round ligament‚is a fibrous cord‚ the obliterated umbilical vein. The liver is also attached to the lesser curvature of the stomach by the hepatogastric and to the duodenum by the hepatoduodenal ligament (see page 1157). 17 The falciform ligament (ligamentum falciforme
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Activity and Oxygen Production Throughout this report you will gain information as to how temperature effects the amount of oxygen produced in an enzyme- catalase experiment. In the experiment we used liver extract as a catalase and created a chemical reaction within a reaction chamber between the catalase and hydrogen peroxide as well as three different controlled temperatures. In the procedure below there will be a step by step process as to how the experiment was created. As a result we
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In my coursework I will investigate about enzymes in potatoes reacting with Hydrogen Peroxide. In particular I will investigate the effects of changing the surface area of a potato when added to Hydrogen Peroxide. This is because‚ when increasing the surface area of the potatoes it will increase the rate of reaction because there will be more surface area on which particles from the potato and the Hydrogen Peroxide will collide on‚ and with more surface area there would be more particles carrying
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Title: Catalase enzyme detection Objective: To understand the function of catalase in cells that produce the enzyme‚ interpret the results of a catalase test and know their value in differentiating bacteria. Materials: 1 clean microscopic slide‚ 3% H2O2 solution‚ swabs. Micrococcus luteus‚ Enterococcus faecalis‚ patient G Procedure: 1) Scrape some cells off from each bateria to the slant and place them on glass slide. 2) Place one or two drops of H2O2. Watch for bubbling as an indication of
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varying substrate concentration‚ and the effect of temperature on the rate of Enzyme-Catalase reaction. In experiment one (i.e. the effect of varying substrate concentration on the rate of enzyme-catalase reaction) we tested the hypothesis HA as substrate concentration increases‚ so will reaction rate until all active sites are bound. In experiment two (i.e. The effect of temperature on the rate of enzyme-catalase reaction) we tested the hypothesis HA as temperature increases‚ so will
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About 25‚000 people die from cirrhosis each year. Description/Definition Cirrhosis is a consequence of chronic liver disease characterized by replacement of normal‚ healthy liver tissue by fibrotic scar tissue‚ blocking the flow of blood through the organ and preventing it from working as it should‚ as well as regenerative nodules leading to progressive loss of liver function. The liver‚ the largest organ in the body‚ is vital in keeping the body functioning properly. It removes or neutralizes poisons
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have a cancer that has already spread to the liver or they will come back in future years with metastatic cancer to the liver.” Liver cancer‚ or other known as Hepatocellular Carcinoma‚ is a cancer residing in the liver. There are other cancers like metastatic cancer that starts at other organs then spreads to the liver. Being the third most common cancer in the world‚ it is also one of the deadliest. Twenty percent of the patients that are affected by liver cancer survive for a year after diagnosis
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Temperature (⁰C) of the catalase and H2O2 Both of the solutions will be poured into test tubes/beakers and then cooled and heated to certain temperatures (10‚ 22‚ 30‚ 37‚ 45‚ and 60⁰C) and with the use of ice and a water bath ( in a separate beaker) I attempted to control the temperature of the catalase mixture as well as the H2O2 solution Dependent Variable: Rate of reaction (cm3/second) The gas syringe (± 0.5) is used to measure the amount of oxygen produced from the catalase reaction. A rubber stopper
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influence on the enzyme activity will be the subject of this investigation. Catalase of potato tuber cells will be the enzyme used in the experiment. RESEARCH QUESTIONWhat is the influence of different values of pH on the activity of catalase in potato tuber cells?VARIABLESIndependent: potato discs treatment (placing them into buffer solutions of different pH values‚ mixed with hydrogen peroxide)Dependent: the activity of the catalase‚ reflected by the rate at which oxygen is evolved‚ measured at every
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THE HUMAN LIVER Steve Shockley SC235: General Biology 1: Human Perspectives Professor Alissa Rennie January 4‚ 2015 The Liver is the body ’s second largest organ‚ weighing about three pounds in an average adult. The human Liver performs many vital functions and is not like any other organ‚ it cannot be compensated by other organs or machines. It is positioned in the upper right side of the abdomen‚ just under the diaphragm. It’s a reddish brown color with four bulging lobes. The main
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