Bacteria Essay

Summary The purpose and goal of this project was to perform a number of tests in the lab and use a dichotomous key to eventually classify a Gram-positive cocci that we were given on March 25th. The key has seven tests to help you determine a certain bacteria, your tests will later on lead you down a certain side to contribute in defining the genus and species. All the following procedures were carried out on the gram positive cocci unknown in this order: Catalase, Oxidase, Nitrate Reduction,…

treated properly or quick enough. It is cause by a soil dwelling bacterium call Clostridium botulinum. This bacterium, while normally killed during the process of cooking, can grow spores (WHO, 1999). Spores are formed when the bacteria are inhabiting an undesirable place. The bacteria typically grow comfortably in temperatures between 35-37 degrees Celsius, which is around body temperature (Merialdi et al., 2016). Due to the desired temperature for growth, if a bacterium gets into the human…

coli Byanka Delgado BIO 181 Lab Thursday 1:30-4:15 Arizona State University Abstract The major objectives of the Bacterial Transformation Lab were to observe standard bacterial growth under various conditions including the transformation of bacteria; to understand how the process of transformation occurs, as well as the biological results and consequences that come of transformation. In order to correctly perform this lab, plasmids, agar plates, Escherichia coli colonies, as well as…

any growth colony because it is presents Ampicillin that break the bacterial cells. In the LB/Amp (pGLO positive), shown growth colony regardless this has Ampicillin. The reason in this case, it is because in the positive DNA has pGLO that can grow bacteria colony on the agar plate.…

stain. A bacterium that is gram-negative tends to have cells composed of a thin peptidoglycan layer, and a gram stain of gram-negative bacteria are seen as red or pink through a microscope (Smith and Hussey, 2005). On the other hand, a bacterium that is gram-positive will have cells made of a thick peptidoglycan layer, and the gram stain of a gram negative bacteria would be seen blue or purple (Smith and Hussey, 2005). In particular, Enterococcus faecalis is a gram-positive bacterium which has…

Biology assignment Introduction ? There are many bacteria present in the world that affect people on a daily basis. There are any antiseptics available on the market to help combat the war against pathogenic bacterium. A common type of bacteria includes bacillus subtillis. ?B. subtillis is a bacterium found on the skin, in the digestive tract, in epithelial wounds, on extremities of the human body, in livestock and soil. Because B.subtiliis is ubquituous, it has developed adaptive strategies…

is to gauge the viability of antimicrobials and other chemotherapeutic agents on pathogenic organisms in recommending a suitable treatment. The scientific context of the the API 20E test is clinically used in quickly identifying enterobacteriaceae bacteria and gram-negative rods. In the Antimicrobial Susceptibility experiment, three microorganisms which were Staphylococcus aureus, Escherichia coli, and the unknown were put into three different agar plate and each plate were divided into four…

recommended dates on the food labels. Our classmate Ron mentioned E.Coli and Salmonella, these two are food borne bacterias with salmonella being the most common cause of illness in the US. Foods contain different natural toxins, but can come to have some that are harmful. Salmonella is a food borne bacteria that have many strains. It is generally found in animals and human feces. This bacteria can spread in raw meats, poultry,…

In order to determine how a patient contracted cholera, steps need to be taken to determine where they contracted it. Cholera is a bacteria called Vibrio cholera (Harris et al. 2008), which is found in water and food that has been contaminated with feces from an infected individual. The disease can be found in municipal water supplies, foods and drinks sold by street vendors, raw or uncooked fish or vegetables frown in water containing human feces (O’Neal et al. 2005). It is typically found in…

Disease: Pertussis Bria Walker University of Missouri-Kansas City Pertussis is an upper respiratory tract infectious disease, which is severely contagious. Also known as the whooping cough. Bordetella Pertussis is the known bacteria that causes the infection. This bacteria irritates the airway causing it to swell. The swelling of the airway presents in an uncontrollable cough and difficult breathing. Each deep breath that is taken, it is said that you can hear a whooping sound; hence the…