Escherichia Coli : Coli ( Coli ) Essay

2189 Words Feb 9th, 2015 null Page
Classification

Escherichia coli is a bacterium that is mostly found in humans and other animals. It is a unicellular micro-organism, making its Domain and Kingdom Bacteria. E. coli’s Phylum is Proteobacteria because it is a gram-negative bacterium. It is also in the Phylum Proteobacteria because of the lipopolysaccharides that protect the cell membrane. E. coli is a facultative anaerobic G- bacterium, making its Class Gamma Proteobacteria. Because of its rod-shape, E. coli’s Order is Enterobacteriales. Escherichia coli has peritrichous flagella, meaning the flagella’s mouth is surrounded with cilia. These peritrichous flagella fit E. coli into the Family Enterobacteriaceae. Since E. coli is mainly found in the GI tract of humans and other animals, it is placed in the Genus Escherichia. The Genus Escherichia has five species, one being Escherichia coli (Moder, 2008). There have been more than 700 serotypes of E. coli identified. The worst type of E. coli is E. coli O157:H7. This type causes bloody diarrhea, sometimes kidney failure, and even death. The majority of E. coli are actually harmless to humans and animals (Clark, 2015) .
Life Cycle

Escherichia coli mainly lives in the gastrointestinal tract of humans and many warm-blooded animals. It can also be found outside of the body in faecally contaminated environments like water and mud. E. coli is in the GI tract a few hours after birth and uses asexual reproduction when undergoing cellular division. Because there is no…

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