Antibiotics are medications that either kill bacteria or prevent them from spreading. They work only against bacteria‚ not the viruses that cause the majority of sore throats‚ colds‚ sinus infections‚ and bronchitis. Most of the infectious diseases are caused by bacteria. Antibiotics transformed medicine. There are two segments of antibiotics‚ early history and modern history. Antibiotics can be defined as a medicine (such as penicillin or its derivatives) that inhibits the growth of
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become more acidic‚ since the desired bacteria would produce lactic acid. The lactic acid would control by inhibiting the spoilage of the cabbage or the cucumber. This was seen by the increase of the acidity in both of the environment‚ which was seen as the pH went from a neutral 7.0 to a relatively acidic 4.0. The drop in the pH from the acid production from lactic fermentation‚ and are know as lactic acid bacteria. (Foster‚ 2009) Typically‚ these bacteria are Lactobacillus spp.‚ Streptococcus
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inhibition‚ where no bacteria can grow just around the paper disc‚ of each plate in millimeters to see how resistant the bacteria are. Then the experimenter takes a tube of tryptic soy but no E. Coli and an incubated plate. The tube needs to be correctly labeled with the culture type and the plate number. After that‚ the bacteria lying along the colonies along the inner edge of the zone of inhibition is selected and taken out using a sterile inoculating loop. With the bacteria on‚ the sterile inoculating
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Transformation refers to the process in which the cell integrates foreign DNA to its genetic code‚ meaning it takes the genes and incorporates them into the cell’s current DNA. Cells that can do this naturally‚ most commonly bacteria and archea‚ are known as competent. The bacteria E. coli do not have high transformation competence under normal conditions‚ but can be manipulated to produce better results using a heat-shock system (Donahue and Bloom‚ 1998). Originally it was thought E. coli couldn’t be
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M21 Essay: Diagnosis of an Infected Patient Essay As we know bacteria comes in various classes and are distinguished by their shapes‚ chemical configuration‚ source of energy either sunlight or chemicals‚ nutritional requisites and biochemical actions. We have a patient that may be infected with an unknown bacterial infection; we’ve collected a sputum sample and will be testing for one of the following genera: Bacillus‚ Escherichia and Mycoplasma. In order to determine which one of the three
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diffusion. • The Monera kingdom includes all bacteria that may infect animals‚ humans and plants. But most of the members are termed as beneficial bacteria‚ rather than pathogenic bacteria. • The Monerans kill organisms causing pathogenic diseases‚ breaks down algae and can even recycle chemical pollutants like hydrogen sulfide and ammonia. • Bacteria that grow in the root nodules help break down atmospheric nitrogen into fixed nitrogen‚ • The bacteria that forms the natural flora of the intestines
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Unknown Bacteria: Bacillus cereus Brittany Moy Coastline Community College Abstract Bacillus cereus is a Gram-positive‚ facultative aerobic‚ spore-forming‚ rod-shaped bacterium that is widely distributed among the environment. Introduction The reason for identification of unknown bacteria was to help students recognize different bacteria through different biochemical tests and characteristics. This is important in the medical field because identification of unknown bacteria can help
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has be highlighted as very important‚ more so than it used to be as more and more people are suffering from heart diseases as a result of fatty deposits building up. Staying on the topic of food‚ the process of fermentation requires the use of bacteria which is a microbe. A big example of this is the production of bread which uses yeast to make the bread rise. This works as it is aerobic respiration so gives off carbon dioxide‚ making the bread rise. Another use of yeast is in anaerobic respiration
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and spread of Infection 1. Understand the causes of Infection 1.1 Identify the differences between bacteria‚ viruses‚ fungi and parasites More accurately‚ parasites are actual animals‚ along with mites‚ and mites are so small you have some thousands living in your eyebrows. Bacteria are one cell things with a cell wall. Virae (viruses) are code only--they are the core requirement that bacteria have‚ but without all the other protective layers like cell wall and energy production. Instead‚ they
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ABSTRACT: This project will show how strong certain bacteria that are commonly found in biofilms attract to Pseudomonas aeruginosa through a capillary tube. It will test ten bacteria to see which bacteria have more chemoattractants with Pseudomonas aeruginosa . These bacteria are all motile‚ so to come together to form a biofilm‚ they must lose their ways of mobility somehow. Since a biofilm is just one huge community of bacteria‚ it would be good to find out if there are ones that are more
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