Part one of term paper
have played a major role in our society thanks to Sir Alexander Fleming's careful observations in 1928. Without it, many lives would be in danger due to infectious diseases. Antibiotics are chemical substances produced by various species of microorganisms and other living systems that are capable in small concentrations of inhibiting t ...

Part two of term paper
... fungi, and molds. Others are wholly or in part synthetic - that is, produced artificially. Penicillin is perhaps the best known antibiotic. Its discovery and later development is among mankind's greatest achievements. Antibiotics have enabled the medical profession to treat effectively many infectious diseases, including some that were once life-threatening. How Antibiotics Work ? Antibiotics can be bacteriostatic (bacteria stopped from multiplying) or bactericidal (bacteria ...