Microbes in Human Welfare
ICSE · Class 12 · Biology
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Which microorganism is responsible for the formation of curd from milk?
Which yeast is used in the production of bread and beer?
Vinegar is produced by the action of which microorganism?
Swiss cheese gets its characteristic holes due to which bacterium?
Sample Questions
Roquefort cheese gets its distinctive flavour from which microorganism?
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Penicillium roquefortii
Penicillium roquefortii is a blue-green mould that ripens Roquefort cheese, giving it its unique flavour and characteristic blue-green veining.
Who discovered Penicillin?
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Alexander Fleming
Alexander Fleming discovered Penicillin in 1928 when he noticed that Penicillium notatum mould inhibited the growth of Staphylococcus bacteria on his culture plate.
In which year was Penicillin discovered?
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1928
Alexander Fleming discovered Penicillin in 1928. Though he made the discovery, it was Florey and Chain who developed it into a usable drug in the 1940s.
Streptomycin is an antibiotic produced by which microorganism?
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Streptomyces griseus
Streptomycin is an antibiotic produced by the soil bacterium Streptomyces griseus. It was the first antibiotic effective against tuberculosis.
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