Question

Lab Report 6 Antimicrobial Activity

Lab report 6 Antimicrobial Activity Observations Part A. Kirby-Bauer Antibiotic Sensitivity Test Chemotherapeutic Gram negative Gram Positive agent E. coli S. aureus B. cereus Zone Susceptibility Zone Susceptibility Zone Susceptibility Size Size Size Penicillin Streptomycin Tetracycline Chloramphenicol Gentamicin Vancomycin Chemotherapeutic agent Spectrum of Activity (Broad or limited) Type(s) of Microorganisms (Gram positive or negative) Penicillin Streptomycin Tetracycline Chloramphenicol Gentamicin Vancomycin Part B. Synergistic effect of drug combinations Culture and drug combination Appearance of Zone Synergistic or Additive Effect E. coli trimethoprim and sulfisoxazole E. coli trimethoprim and tetracycline S. aureus trimethoprim and sulfisoxazole S. aureus trimethoprim and tetracycline Review questions 1. Your experimental results indicate that antibiotics such as tetracycline, streptomycin, and chloramphenicol have a broad spectrum of activity against prokaryotic cells. Why do these antibiotics lack inhibitory activity against eukaryotic cells such fungi?

Answer 1

Answer:- Antibiotics are substances that are produced by buteria and have a static (8) intrebitsy Ebout in other bacteria. Rn nature, these compounds have a usebal role for their synthesizing raganisms in dealing with competing beauteria. Thus, in turn with their natural functions, antibiotics are Effective cagaunst other bacteria and not on lite forms other than bouteria such as tungi (81) Eukaryotic cells. C please rate my Arsuri