Introduction Gram staining was developed by Christian Gram in the 1800’s‚ a Danish bacteriologist. (Smith and Hussey‚ 2005) It was the first differential staining technique and most common used in microbiology. Furthermore‚ bacteria are transparent and cannot be seen through the microscope. For that reason‚ Gram staining is an important tool for distinguishing between two main types of bacteria Gram-positive and Gram-negative. The Gram stain differentiates the Gram positive and gram-negative on the
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Methicillin Resistant Staphylococcus Aureus Staphylococcus aureus bacteria‚ commonly known as staph‚ are very common. It is "a spherical gram-positive parasitic bacterium of the genus Staphylococcus‚ usually occurring in grapelike clusters and causing boils‚ septicemia‚ and other infections." In fact‚ many people have some living on their skin all of the time and it can cause infection anywhere in the body. There are antibiotics that have been known to kill this bacterium. Unfortunately
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Methicillin-resistant Staphylococcus aureus September 22‚ 2013 Methicillin-resistant Staphylococcus aureus Methicillin-resistant Staphylococcus aureus also known as MRSA‚ is a bacteria that is resistant to many antibiotics. In the community‚ most MRSA infections are skin infections. In the medical facilities‚ MRSA causes life-threatening bloodstream infections‚ pneumonia and surgical site infections. (Methecillin-resistant Staphylococcus aureus (MRSA) infections‚ 2013) Individuals would
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Gram Staining Lab Introduction Gram staining is a very important technique used in biology labs all over the world. It is a technique used to differentiate types of bacteria using certain physical and chemical characteristics of their cell walls. Gram positive bacteria (which show up purple after the gram staining process) have a very thick layer of peptidoglycan where gram negative bacteria (which show up pink after the gram staining process) have a much thinner layer of peptidoglycan. One thing
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Bacteria Classification By Gram Staining THE AMERICAN UNIVERSITY IN CAIRO BIOLOGY DEPARTMENT SCIENCE 453 : BIOLOGY FOR ENGINEERS REPORT No.1 Presented By : Karim A. Zaklama 92-1509 Sci. 453-01 24/2/96 Objective: To test a sample of laboratory prepared bacteria and categorise it according to Christian’s gram positive and gram negative classes and also by viewing it under a high powered microscope and oil immersions; classify its shape and note any special characteristics. Introduction: Bacteria
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medicines are of herbal origin. Staphylococcus aureus has long been recognized as one of the most important bacteria that cause disease in humans. It is the leading cause of skin and soft tissue infections such as abscesses (boils)‚ furuncles‚ and cellulitis. Although most staph infections are not serious‚ Staphylococcus aureus can cause serious infections such as bloodstream infections‚ pneumonia‚ or bone and joint infections. Anyone can get a staphylococcus aureus skin infection. You are more likely
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are: Microbial nomenclature: The name of the bacterium should written and spelled correctly. The name should be italicized or underlined. Italicized is preferred. For example‚ Staphylococcus aureus. The genus is capitalized but the species is not. After the full genus name is given in the paper‚ it can be written as S. aureus‚ but still italicized. This is as long as there in no other genera in the paper that starts with the same letter. MATERIALS AND METHODS This is where the details of the study
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Methicillin Resistant Staphylococcus Aureus Staphylococcus aureus is an important and common pathogen in humans. It is found in the nose or on the skin of many healthy‚ asymptomatic persons (i.e.‚ carriers) and can cause infections with clinical manifestations ranging from pustules to sepsis and death. Most transmission occurs through the contaminated hands of a person infected with or carrying S. aureus. MRSA infections frequently are encountered in health-care settings (Lowy‚ 1998). A common
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Escherichia coli and Staphylococcus aureus‚ were grown singly and mixed on four different types of agar in order to observe the varying morphologies within the colonies. Resulting data was analyzed to provide understanding of the use of differing culture media and conditions for bacterial growth. RESULTSFour different agar types were used in this experiment. The first (Nutrient) allowed for growth of both E. coli and S. aureus. The second agar used (MKL) inhibited the growth of S. aureus but allowed the
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Techniques and Gram Staining Method Results Table 1. Gram stain reaction and cellular features of the culture. Gram staining methods were applied on the given mixture of Bacillus cereus‚ Escherichia coli and Staphylococcus aureus and then examined microscopically. Results were recorded in Table 1. Gram Reactions Cell shapes Cell Ends and Arrangement Size Distinctive Characters Predicted Bacteria Bacteria 1 Gram positive (purple) Cocci Rounded‚ clusters‚ singly Small - Staphylococcus aureus Bacteria
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