In the 1940s antibiotics were widely introduced as a cure for common types of diseases. However‚ some of the diseases started to build up a resistance to the antibiotics and in result‚ the antibiotics became ineffective. In order to help resolve the crisis‚ antibiotics were found through screenings of soil microorganisms. However‚ soil microorganism’s antibiotics were depleted by the 1960s and their antibiotic effects were unable to be replicated through synthesis. In this experiment‚ the researchers
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Microbiological Media Table of results: Media | E. coli | Salmonella | Serratia | Pseudomonas | Proteus | EMB(Colour: Wine) | Metallic Green sheen on streak.Media: Pink | ColourlessMedia: Wine | Black dot in centre of colonies.Media: Wine | Similar colour to the media.Media: Wine | ColourlessMedia: Wine | XLD(Colour: Red) | ColourlessMedia: Yellow | Black dot in centre of colonies. Media: Pink | Pink/OrangeMedia: Pink | ColourlessMedia: Pink | Black dot in centre of colonies. (smaller
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In this essay I am going to discuss all three of the people mentioned above but I will also show you who I believe is the most influential and why I believe this. These people changed our medical knowledge forever and will always be remembered for this. Firstly there was Edward Jenner‚ he was born in 1749 and died in 1823‚ however in his 17 years he made one of the greatest discoveries in medical history. He had heard an old wives tale about milkmaids not contracting smallpox‚ which was a deadly
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Dangerous Waters Fecal Coliform Table of Contents Introduction……………………………………………………………………………………………………3 Purpose…………………………………………..………………………………………………………………3 Hypothesis………………………………………………………………………………………………………4 Materials…………………………………………………………………………………………………………4 Procedures…………………………………………………………………………………………….….…4-5 Variables…………………………………………………………………………………………………………5 Results…………….………………………………………………………………………………………………6 Analysis……………………………………………...………………………………………………..………6-7 Conclusion…………………………………………………
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A. The typical human mouth contains a writhing orgy of bacteria. Most of these. Most of these microscopic organisms are bengin‚ and some are even beneficial‚ but one particular variety is a conspicuous troublemaker: Streptococcus mutans. These ubiquitous bacteria thrive on sugars in the mouth‚ which they consume while excreting lactic acid. This acid is responsible for the great majority of tooth decay in humankind because it erodes the enamel and dentin of the teeth. B. A Florida-based company
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Cryptosporidium Parvum Case Summary Johnny Doe‚ a 26-year old patient‚ is admitted to the local hospital’s emergency department with the complaints of severe nausea‚ abdominal cramps‚ and watery diarrhea. Johnny was previously diagnosed with HIV‚ about five years ago. The diarrhea began about two weeks ago and he has had eight to twelve watery stools per day‚ and also refers to a loss of appetite and low fevers. He is an active swimmer and goes swimming frequently in the local town lake as well as
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CHAPTER I INTRODUCTION 1. ENTEROCOCCUS FAECALIS AND STAPHYLOCOCCUS AUREUS OUTLINE The Human indigenous micro flora consists of opportunistic pathogens along with other nonpathogenic bacterial strains. Two eloquent members of the category of gram- positive bacteria‚ Enterococcus faecalis and Staphylococcus aureus belong to this category. Being a facultative anaerobe‚ aero tolerant anaerobe respectively‚ both of these organisms inhabited the human body for centuries. Ability to thrive in extreme condition
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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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Bacteria have to developed a variety of mechanisms that allow them to enter the cells of their host‚ whether to replicate or to transmit the pathogen. One method of this is through pili. Pili are thin rods anchored to the outer membrane of bacteria with an adhesin at the tip. This adhesin is what gives the bacteria their binding specificity. Pili can serve a variety of roles such as‚ adhesion or the transfer of material during bacterial conjugation. Fimbria are a type of pili that are solely for
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Bonnie Bassler claims that bacteria although simple have complex systems that they use to communicate with each other to coordinate. This is crucial to humans because Dr. Bassler considers humans to be 90-99% bacterial. Dr. Bassler states we have about one trillion human cells but we have about 10 trillion bacterial cells that either live in or on humans. The number of bacterial genes in those cells outnumber humans by 100 times since humans only have 30‚000 genes. These bacteria share a mutualistic
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