Bacterial Resistance to Antibiotics

Overview

Recently, it has been apparent that certain bacteria are becoming resistant to antibiotics, which is leading to many fatalities. This is due to the fact that antibiotics may be prescribed more frequently than they should be. Because of this, the bacteria can start to mutate, which causes bacterial resistance and the ineffectiveness of the antibiotic. The purpose of this experiment is to test if the bacteria, Staphylococcus epidermidis, will become resistant to the antibiotic, cephalexin? In order to test this hypothesis, a Kirby- Bauer Susceptibility Test was used to determine if Staphylococcus epidermidis would mutate and become resistant to cephalexin for up to fifteen generations. To produce a new generation, the zone of inhibition from the affected bacteria was swabbed from the previous generation, and the antibiotic solution was administered to the new generation. Results of this experiment included that Staphylococcus epidermidis showed bacterial resistance to cephalexin.

Competition history

• AJAS 2019 Category not listed

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