Antibiotic Resistance Bacteria Essay

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Bacteria do not contain a nucleus; therefore they’re prokaryotic, instead they contain a DNA strand. Bacteria are identified into five groups: cocci, bacilli, spirilla, vibrios, and spirochaetes, which are classified by shape. Antibiotics are created to fight off bacteria related illnesses, some bacteria can evolve to become antibiotic resistant. Through a complex process, some bacteria that survive the antibiotic, will form newly antibiotic resistance bacteria. E. coli (Escherichia coli 0157:H7) is a type of bacteria that can be harmful to humans, which causes severe bloody diarrhea, abdominal cramps, and a slight fever. Moreover, E.coli 0157:H7 is most commonly found in undercooked and contaminated ground beef. Ampicillin and sulfamethoxazole-trimethoprim …show more content…
Firstly, bacteria acquire their resistant genes from their plasmid. Antibiotic resistance is when a bacteria survives against antibiotics and “learns” how to, “multiply in the presence of therapeutic levels of an antibiotic.” (www.tuff.edu) The surviving bacteria multiply to form antibiotic resistant bacterias. Thus, the cycle continues. Why does this phenomenon occur in the first place? One explanation is that when bacteria are put into a hostile environment with a selective pressure, they genetically mutate to better suit the hostile environment. In other words, the strongest and more suitable bacteria survive, leaving the weaker bacteria to die, “Survival of the fittest .” (Herbert Spencer) The overuse of antibiotics is also to blame as it leads to the same result. Bacteria reproduce by the process of conjugation. Conjugation is when “bacteria transfer genetic material, including genes encoding resistance to antibiotics from one bacterium to another.” (www.health.ny.gov) Thus, the newly formed bacteria has become resistance to the antibiotic without being in that hostile environment. One great example of this amazing evolution is E.coli

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