In her Ted Talk‚ Maryn McKenna illustrates the danger that humanity was in before the rise of antibiotics‚ and the future risks that will arise if further intervention on antibiotic resistance is not done. She describes that in the past‚ before penicillin was discovered by Alexander Fleming‚ infections were the primary cause of death and most people did not live past the age of forty. Once antibiotics were discovered‚ they functioned as a panacea‚ saving people from injuries and infections and allowed
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University of Phoenix Material Appendix B – Identifying Bacteria Bacteria identification is accomplished in a number of ways. Two common tools microbiologists use to identify unknown bacteria include dichotomous key and biochemical tests. The dichotomous key is useful when a microbiologist only needs to know which group an unknown microbe belongs to on a general level. When a microbiologist needs to identify a specific bacterium‚ biochemical tests are used. PART ONE: GENERAL BACTERIA IDENTIFICATION
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Jody Kaur Pure Cultures Lab 1/31/13 Introduction : Pure cultures are made of only one type of organisms and can be used to study their properties. A method used to isolate pure cultures is making a steak-plate‚ which is a dilution process in which culture is spread over an agar plate in a certain manner. Using a loop rod‚ culture was taken from the tube and dragged across area 1 several time‚of the agar. The agar was then turned 90º‚ and the loop was flamed and cooled. Taking some culture
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Microbiology 20 Laboratory Final Exam Guidelines The laboratory exam will be given on Tuesday December 4th (sections 0375 and 3252) or Thursday December 6th (section 3253) and consist of an open book portion given in CMS 105 followed by a practical portion (closed book) to be given in the lab (CMS 002). You will not need a Scantron. For the open book test‚ be sure to bring any resources you may need including your lab manual‚ lab notebook‚ safety guidelines and handouts. For the practical portion
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Any species of bacteria can turn into a superbug. A superbug is a strain of bacteria that is resistant to antibiotics. According to webmd.com "Every year‚ about 2 million people get sick from a superbug‚ according to the CDC. About 23‚000 die. Earlier this year‚ an outbreak of CRE (carbapenem-resistant enterobacteriaceae) linked to contaminated medical tools sickened 11 people at two Los-Angeles area hospitals. Two people died‚ and more than 200 others may have been exposed." This has become a serious
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PROTIST STUDY GUIDE 1. Where can Protists primarily be found? Most Protists can be found in wet areas‚ tree trunks and other organisms 2. What niche do Protists fill in an ecosystem? Protists have a big role in marine life‚ it serves as housing for many animals and food for many as well. 3. What are the 3 categories of Protists? Animal-like protists plant-like protists and fungus-like protists 4. What are the 4 types of Protozoa and how does each one move? Ciliates : Have hundreds of
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Throughout his life‚ Louis Pasteur became a world-famous scientist known for his astute role in the pasteurization process and its new discoveries. Not only excelling in fermentation and other bacteria‚ Pasteur helped contribute to saving France’s silk production when he discovered Flacherie‚ the disease plaguing the silkworms in the nation. Striving from his previous discoveries‚ Pasteur’s most successful proposition was when he introduced advancements to The Germ Theory‚ which gave an explanation
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When the Antibiotics Quit Working It seems as though antibiotics are slowly losing the battle against infectious disease thus causing a greater demand for researchers to invent new antibiotics that have new mechanisms for killing microbes as well as new vaccines. The problem is that bacteria are becoming resistant to antibiotics. When bacteria are exposed to antibiotics they are under “selective pressure” that allows
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Biodegradation is the breakdown of polymer by microbial organism such as bacteria‚ fungi etc. into smaller compounds. The microbial organisms degrade the polymer through metabolic or enzymatic processes. Synthetic plastics are resistant to degradation‚ and consequently their disposal is fuelling an international drive for the development of biodegradable polymers. A variety of natural‚ synthetic‚ and biosynthetic polymers are bio and environmentally degradable. A polymer based on a C-C backbone tends
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MBK – Lab Report Name: ____________________ Section: ___________________ Antibiotic Sensitivity The Kirby-Bauer Test Interpret your results as described below. INTERPRETATION: · Place the metric ruler across the zone of inhibition‚ at the widest diameter‚ and measure from one edge of the zone to the other edge. HOLDING THE DISH UP TO THE LIGHT MIGHT HELP. · The disc diameter will actually be part of that number. · If there is NO zone at all
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