Antibiotic Effectivness lab

Antibiotic Effectivness lab - Antibiotic Effectiveness...

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Antibiotic Effectiveness Rachel Romm Biology 1H P5 1 May 2009
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Problem: When three different antibiotics, Tetracycline, Neomycin, and Erythromycin, in the form of disks, are all placed in three different Petri dishes containing, Enterobacter aerogenes, Bacillus cereus or Sarcina lutea, which antibiotic will prove to be the most effective with each bacteria? Objective: To find the most effective antibiotic for each bacteria given. Data: Table 1- Mean Diameter of Inhibition Zones for Each Antibiotic with Each Bacteria Type Sketch 1- Diagram of Enterobacter aerogenes in Petri Dish 1 Petri dish 1 contained Enterobacter aerogenes , a Gram- negative, rod-like bacterium whose most effective antibiotic was tetracycline, which is a broad-spectrum antibiotic that prevents protein synthesis in the bacteria. Bacteria Antibiotic Measurement 1 (mm) Measurement 2 (mm) Measurement 3 (mm) Average (mm) Enterobacter aerogenes Neomycin 15 15 15 15 Tetracycline 20 20 25 22 Erythromycin 15 10 10 12 Bacillus cereus Neomycin 25 16 24 22 Tetracycline 25 20 32 26 Erythromycin 38 25 35 33 Sarcina lutea Since the bacteria did not fully develop, no observations were possible
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This note was uploaded on 03/25/2010 for the course BIO 5381 taught by Professor Smith during the Spring '10 term at N. Arizona.

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Antibiotic Effectivness lab - Antibiotic Effectiveness...

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