Flashcards
The Germ Theory
Cards in this deck (11)
- 1What was the theory on micro-organisms before the germ theory?Spontaneous generation
- 2What did this mean?The micro-organisms (as seen on rotting food) were spontaneously generated through the process of decay
- 3Who came up with The Germ Theory?Louis Pasteur
- 4When did he prove it?1860-1864
- 5What did he do first?Boiled up liquid and put half into an open flask and half into a swan neck flask
- 6What was special about the swan neck flask?It didn't allow any air in it - it was 'sealed'
- 7What did he find?After the first few days, the open flask had begun to get mouldy, but the liquick in the swan neck flask was still clean and sterile!
- 8What did he do next?He checked his theory by leaving the flask for moths. It was still sterile! Then, he shook it so air was able to enter.
- 9What did he find?After a few days, the liquid had gone mouldy
- 10What did this prove?Germs were in the air, not spontaneously generated as previously thought! It was the germs in the air that caused things to mould.
- 11What happened next?He began to link his discovery of germs to disease...
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- GCSE History (Medicine Through Time) Flashcards on The Germ Theory, created by Alice Hathaway on 28/04/2016.
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- Alice Hathaway
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