Alhia Harris October 18‚ 2011 Biology Lab report Proteins are very important throughout the body. They have a lot of functions in cells. Antibodies are proteins that help cells rebuild the cells when they are destroyed. Transport proteins move substances from one place to another. Regulatory proteins control cellular metabolism in a way that cells throughout the body can have the right amount of glucose in the blood. A common protein is an enzyme; in cells they speed up chemical reactions. For
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The Effect Of Enzyme Concentration On Enzyme Activity The pancreatic duct in individuals who have cystic fibrosis frequently becomes blocked‚ reducing or preventing the release of pancreatic enzymes into the small intestine. The aim of this activity is to investigate the effect of a reduction in enzyme concentration on the rate of reaction‚ in this case the breakdown of protein by protease enzymes. Aim – Milk powder contains a white protein called casein. A white suspension of
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Abstract: This report presents the reason why the ocean does not freeze in the winter. Since the ocean consists of salt water‚ an experiment was done to test the effect of freezing on salt water compared to pure water. The experiment was conducted three times in order to obtain accurate results and eliminate errors. In addition to the salt and pure water experiment‚ a variation of this experiment was created to test other options. In the variation experiment the effect of freezing on sugar water
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indicates a 3 kg weight gain over 2 days. 2. The client is complaining of nausea. 3. The client has a temperature of 99° F orally. 4. The client has fatigue. The nurse is assessing a client with hepatitis and notices that the AST and ALT lab values have increased. Which of the following statements by the client requires further instruction by the nurse? 1. “I require increased periods of rest.” 2. I follow a low-fat‚ high carbohydrate diet.” 3. “I eat dry toast to relieve my nausea.”
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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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acid and enzymes are also produced by cells of the stomach. All these substances are mixed with the food and break it down. Crushed‚ it is transformed into liquid‚ the chyme. At this stage‚ the chyme is at the level of the pylorus. It is then propelled little by little into the small intestine by contraction of the stomach. Generally‚ the stomach will empty in about 4 hours after a
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were collected together to describe the characteristics of D. pigrum and the infections. Dolosigranulum pigrum is catalase-negative gram-positive cocci arranged in pairs‚ tetrads‚ and clusters and usually colonize the normal floras of the oral cavity‚ the skin‚ and the respiratory and alimentary tracts (1). However‚ there have been very few reports about this bacterium. Here we report D. pigrum associated with a facial herpes zoster accompanied by herpes zoster conjunctivitis in a patient hospitalized
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Alcohol and the Liver People in today’s society should be more cautious and aware of the adverse side effects that come with the lifestyle decisions they choose to make. Alcohol is one of those significant lifestyle choices that people should consider the consequences of when deciding to use it. There are three general classes that are in relation to alcohol: beers‚ wines‚ and spirits. Several alcoholic beverages are extremely popular; however the most consumed is beer. It has been around as far
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the Catalytic Properties of the Enzyme Peroxidase Extracted from a Turnip Under the Conditions of Temperature‚ pH‚ Boiling and Competitive Inhibitors By Robin Caserta BIO 101 September 30‚ 2013 ABSTRACT The enzyme‚ peroxidase‚ extracted from a turnip was tested for its efficiency in binding to its substrate and its stability under several conditions. To do this‚ we tested effects on peroxidase activity‚ first‚ with different amounts of the enzyme‚ next at temperatures of 4oC‚ Room
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I had # 8 organism‚ Bacillus subtilis. Bacillus subtilis is a Gram-positive bacteria‚ rod-shaped and catalase positive. In order to figure out what is my unknown organism for this assignment‚ I had to perform series of tests. First was the glucose‚ lactose‚ and sucrose test. Through these three tests‚ I was able to detect the ability of the microorganism to ferment a specific carbohydrate. Fermentation reactions are observed by the color change in pH. In class‚ we used phenol red as the pH indicator
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