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28 Cards in this Set
- Front
- Back
- 3rd side (hint)
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The term mcb was given by? |
French chemist Louis Pasteur (1822-1895) |
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The term microbe was first used by? |
Sedillot(1878) |
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People believed that life could form from thin air and that sickness was caused by sins or bad odours till what year? |
1880s |
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Who discarded the notion of abiogenesis by the Greeks? |
Aristotle |
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Who is the father of mcb |
Antonie van Leeuwenhoek (1632-1723). He was the first to use a microscope |
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The golden age began with works of - and -? |
Robert Koch and Louis Pasteur During this period we see the real beginning of mcb as a discipline of biology |
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Describe Louis Pasteur's experiment |
He boiled broth in a flask with straight neck and left it exposed to air, organism grew. With goose-necked flask, nothing grew. |
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What did Pasteur prove from his experiment? |
He proved that it was the organisms in the dust that were growing in the broth. |
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What is pasteurization? |
A process whereby undesirable organisms are mildly heated at 62.8'C or 145'F for 30 minutes rather than boiling. |
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In pasteurization, how many minutes are the unwanted organisms mildly heated? |
30 minutes |
Half an hour |
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Who is the father of modern microbiology? |
Louis Pasteur |
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In what year did Louis Pasteur discover pasteurization? |
1862 |
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Who discovered tyndallisation What year was it discovered |
John Tyndall (1820-1893) It was discovered in 1877 |
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Why is agar superior to gelatin in culture media? |
Because it has high melting (96'C) and solidifying point (40-45'C) And it is not attacked by most bacteria |
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When was the electron microscope developed? |
1940s |
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When was the germ theory of disease established? |
1880s |
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A few harmful microbes e.g less than - % of bacteria can cause disease in host? |
Less than 1% |
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Cold |
Rhinovirus |
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Varicella zoster |
Chicken pox |
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Rubella |
German measles |
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Whooping cough |
Bordatella pertussis |
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Yersinia pestis |
Bubonic plague |
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Trichophyton rubrum |
Ringworm |
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Athletes foot |
Trichophyton mentagrophytes |
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The site at which microbes enter our body is known as? |
Portal of entry |
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List 6 diseases transmitted by mosquito |
Maleria West Nile virus Chikungunya Dengue fever Yellow fever Zika |
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What is the composition of a common library disinfectant? |
Freshly prepared 10% bleach and 70% ethanol |
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What are the methods used in sterilization procedure? |
Heat Hydrogen peroxide gas Ethylene oxide gasHydrogen peroxide gasPlasmaOzoneRadiation gasHydrogen peroxide gasPlasmaOzoneRadiation Plasma Ozone Radiation |
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