Bacteria An Actual Report Essay Research Paper

  • Просмотров 145
  • Скачиваний 9
  • Размер файла 16

Bacteria An Actual Report Essay, Research Paper Bacteria comes from the Greek word meaning “Little Staff” (Infopedia) (or more appropriately “Staph”) which most likely refers to some form of Bacillus, but what is bachteria and why do we need it. When most people think of the idea of little crawlies on their skin, they pretty much freak (See Jackie Plank), but we need to see is the difference between the pathogens and the helpful bacteria, the good and the bad, the yin and yang of monerans. Koch (1843-1910) is often considered the founder of medical bact eriology. A german scientist and Nobel laureate he managed to discover several pathogens including tuberculosis, and discovered the animal vectors of a many of major diseases. (Encarta 95) Koch was born in

Klausthal-Zellerfeld, December 11, 1843; in 1862 Koch began his education at the University of Gottingen. He studied mostly botany, physics, and mathematics and so began his medical career. He spent a short time at the Hamburg General Hospital also at a institute for retarded children, then started private practice. His career did not keep him from exploring his other interests including archaeology, anthropology, occupational diseases (lead poisoning) and the newly emerging field of bacteriology. (Encarta 95) Koch’s bacteriology studies first accomplished something big in the 1870’s, when he discovered that anthrax, an infectious disease, appeared in mice only after the rods or endospores of Bacillus anthracis was injected into the bloodstream. Koch’s demonstration was a

major breakthrough as it was the first time an infectious agent had been linked to a disease beyond a reasonable doubt. This in turn disproved superstition about disease being caused by magic or spirits and proved that they are caused by microorganisms, in this case, bacteria. (Encarta 95) Koch then showed how one would work with such an organism, to get them from subjects, to grow them in a lab and eventually, how to kill them. Then, he went on to demontrate these things to a German pathologist Julius Friedrich Cohnheim and his associates, one of whom is considered to be the founder of modern immunology, Paul Ehrlich.(Encarta 95) Born in Dole on December 7, 1822, Pasteur, the son of a tanner, Spent his boyhood in Arbois. At the Ecole Normale in Paris in 1847 he became a doctor

in boath physics and chemistry. Later he became interested in souring milk and develpoes a method of decontaminating milk called pasturisation in wich you heat the milk to a high temperature and pressure before bottling.(Infopedia) Sir Alexander Fleming, who later discovered penicillin, 1920s the British bacteriologist Sir Alexander Fleming, who later discovered penicillin, discovered a substance called lysozyme in tears, sweat plant and animal substances, exc. While it is usefull mainly against harmless bacteria, lysozyme has strong antimicrobial agent. Discovered accidentally in 1928 Its effectiveness agenst disease-causing bacteria was shown in a lab. (Infopedia) There are several differnt types of bacteria, first split into two goups, Aerchybarteia and Eubateria.

Aerchybatcheria Are considered the less primitive and older of the two. They mainly enjoy the more extream enviorments, mudpots, deep sea vents and hot springs. Eubacteria is considered the more evolved and newer of the two. Most bactreia are Eubateria and they cause most of the diseases we are familar with. Below Eubateria are the classifacations of autotrophs and heterotrophs. Autotrophs being the types of bacteria that can make your own food and heterotrophs being te types that must eat to get food. Of the autotrophs there are the photosynthedic autotrophs and the chemosynthedic autotrophs. Photosynthedic autotrophs are plant like in the way that make their food with the energy of sunlight. Chemosynthedic autotrophs, however, make their food with inorganic chemicals. On the