Bacteria, Viruses and Prions

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Viruses, Bacteria, Prions Bacteria is essential to humans to not only be able to live, but also to be able to live on Earth. Bacteria is also essential for good health. The typical structure of bacteria includes; cytoplasm, nucleoid, flagella, pili, and a cell wall with a capsid. Bacteria is found in the Large Intestine, where it makes Vitamin K. It also helps provide a taste for yogurt and sourdough bread. Bacteria is used to digest cellulose for animals such as cows, sheep, and goats. Bacteria is prokaryotic, and appears as many different shapes. The shapes include; minute spheres, cylinders, spiral threads, flagellated rods, and filamentous chains. Bacteria use Binary Fission to reproduce. In Binary Fission, bacterial cells double their size and split into two separate cells. Before Binary Fission, though, a cell copies genetic material and puts them on the opposite ends of the cells. As the division happens, the DNA isn’t damaged and the cytoplasm breaks into two. An example of a bacterial disease that someone can contract is Hansen’s disease, also known as Leprosy. Some symptoms of Hansen’s disease are skin lesions on upper arms, hands, face and legs. There might also be crusty erosions over the arms, elbows, and legs. Someone suffering from Hansen’s disease might also suffer from loss of sensitivity in the hands and feet. Hansen’s disease is caused by the bacteria Mycobacterium Leprae, also known as M Leprae. M Leprae is a slow-growing bacillus and parasite. People can contract Hansen’s disease if they come in contact with droplets from the nose or mouth of someone with Hansen’s disease. Hansen’s disease is now very rare, and is treatable. In the United States alone, there are only around 300 cases reported every year. ... ... middle of paper ... ...on Page: National Institute of Neurological Disorders and Stroke (NINDS). National Institute of Neurological Disorders and Stroke, 19 Feb. 2014. Web. 28 Mar. 2014. 17. Prion." - Definition from Biology-Online.org. Biology-Online.org, 17 Feb. 2007. Web. 29 Mar. 2014. 18. Rocky Mountain Spotted Fever (RMSF)." Centers for Disease Control and Prevention. Centers for Disease Control and Prevention, 21 Nov. 2013. Web. 29 Mar. 2014. 19. Creutzfeldt-Jakob Disease (CJD)." Proteins and Prions. Regents of the University of California, 2014. Web. 29 Mar. 2014. 20. Prion Diseases." Johns Hopkins Medicine, Based in Baltimore, Maryland. The John Hopkins University, the John Hopkins Hospital, and John Hopkins Health System, n.d. Web. 29 Mar. 2014. 21. St. John, Tina M., M.D. "What Are the Dangers of Tick Bites?" LIVESTRONG.COM. LIVESTRONG.COM, 09 June 2010. Web. 29 Mar. 2014

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