8 Questions
What is an antibiotic?
An antibiotic is a chemical substance produced by a living organism which can stop the growth of some disease-producing bacteria and fungi.
Who discovered the first antibiotic, penicillin, and how was it discovered?
Alexander Fleming discovered penicillin. He observed that some bacteria growing in a culture were destroyed by an accidental contamination of a mould Penicillium chrysogenum.
Why do bacteria produce spores?
Bacteria produce spores as a protective mechanism to survive in harsh conditions.
What is the source organism of streptomycin, another important antibiotic?
The source organism of streptomycin is the bacterium Streptomyces griseus.
What is the common method of reproduction in bacteria?
The common method of reproduction in bacteria is binary fission.
How are bacteria used in medicine?
Bacteria are used in medicine for the production of antibiotics, serums, and vaccines.
What was the accidental contamination that led to the discovery of penicillin?
The accidental contamination was a mould called Penicillium chrysogenum.
Who discovered streptomycin and from what source organism?
Streptomycin was discovered by Selman Waksman, and its source organism was the bacterium Streptomyces griseus.
Test your knowledge on the reproduction methods of bacteria and their useful roles in medicine. Questions cover topics such as the common method of bacterial reproduction, the production of spores, and the use of bacteria in producing antibiotics, serums, and vaccines.
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