Multiple Choice
Which of the following best describes the primary focus of microbiology?
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1. Introduction to Microbiology
Introduction to Microbiology
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The first true antibiotic was __________, which was discovered by __________.
A
sulfanilamide; Gerhard Domagk
B
tetracycline; Howard Florey
C
penicillin; Alexander Fleming
D
streptomycin; Selman Waksman
Verified step by step guidance1
Understand that the question is asking for the name of the first true antibiotic and the scientist who discovered it.
Recall that an antibiotic is a substance produced by a microorganism that kills or inhibits the growth of other microorganisms.
Identify that penicillin is widely recognized as the first true antibiotic because it was the first to be used effectively against bacterial infections.
Remember that Alexander Fleming discovered penicillin in 1928 when he noticed that a mold (Penicillium notatum) inhibited bacterial growth on a petri dish.
Match the correct antibiotic and discoverer: penicillin; Alexander Fleming.
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