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11 Cards in this Set
- Front
- Back
- 3rd side (hint)
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Lucretius |
First to suggest microbes exist and may cause disease. Nobody believe him, instead they listened to someone else opposing. |
First to suggest. |
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Antony van Leeuwenhoek |
First to view microbes using a microscope(300x). Decided that microbes are everywhere calling them "animalcules" |
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Aristotle |
Supported the concept of spontaneous generation, before the discovery of microbes. People believed him. |
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Francesco Redi |
Challenged the concept of spontaneous generation. Observation: over time, maggots developed on meat. Hypothesis: maggots arise from eggs laid by flies NOT spontaneous generation. |
Redeye-ribeye |
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John Needham |
Challenged spontaneous generation for Microbes. Obs: over time, beef broth turns cloudy with the presence of microbes. Hypothesis: Microbes arise from pre-existing microbes already in flask or from air contamination, NOT spontaneous generation. |
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Lazzaro Spallanzani |
Improved Needham's work By capping the flash with beef broth Conclusion: Microbes arise from pre existing microbes already in flash or from air contamination, not spontaneous generation. BIOGENESIS. People didnt believe him. They believed nothing could exist without air. |
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Louis Pasteur |
Improved Spallenzani's work Experimented with Swan Necked flask with beef broth. Conclusion: same as Spallenzani Further proved BIOGENESIS |
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First discovered microbes |
Antony van Leeuwenhoek |
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Spontaneous generation |
Living things can arise from non-living matter. Aristotle supported this concept. |
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Capped flash with beef broth experiment |
Lazzaro Spallenzani tried to improve Needhams first experiment by heating the beef broth with cap on. |
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Ignaz Semmelweis |
Connected childbed fever with unwashed hands of med students /physicians |
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