Problem
Both E. coli and B. subtilis are symbiotic species that live in our digestive systems.
(For penicillin, no mean zone of inhibition was obtained for E. coli; mean zone of inhibition between 5 and 15 was obtained for B. subtilis. For norfloxacin, mean zone of inhibition superior to 25 was obtained for E. coli; mean zone of inhibition between 15 and 25 was obtained for B. subtilis. For streptomycin, mean zone of inhibition between 5 and 15 was obtained for E. coli; mean zone of inhibition between 5 and 15 was obtained for B. subtilis.)
1. Suppose you were taking penicillin to treat a particular bacterial infection, which of these two species would you also be killing off? Explain your reasoning.
2. What side-effects would you likely experience from a prolonged penicillin treatment? Explain your reasoning.
3. Would would you have fewer side effects if you were taking streptomycin or norfloxacin? Explain your reasoning.