Louis Pasteur Documentary Flashcards
who was Louis Pasteur?
He discovered that microorganisms were all around us and could cause diseases. He discovered solutions to medicine and problems.
How did people explain the cause of disease before microbes were discovered?
They though it would appear out of thin air.
When Pasteur looked into why some beet juice alcohol and wine became sour during the process of fermentation, what did he find?
He found that yeast caused fermentation, which causes sourness. Other microbes contaminated the beat juice, which causes sourness.
What is pasteurization and why was it first developed?
The process of heating to kill all harmful/unwanted/pathogenic microbes without ruining the product in the process.
How did Pasteur save the silk industry in France?
By proving that germs passing from one worm to another caused death.
Why were hospitals dangerous places in Pasteur’s day?
Because operating rooms were crowded, poorly operated, poorly lit, and poorly ventilated. They used took, sheets, etc. This was caused by microbes.
How did the surgeon, Joseph Lister, try and improve hospital outcomes?
He learned that he needed to prevent germs from entering a wound. He used antiseptic and sterilized tools.
When Pasteur studied chicken cholera, what happened in the experiment where he injected the disease into chickens after growing it for several weeks in the lab? What happened in his follow-up experiments where he injected a fresh batch of cholera into the exposed chickens as well as the unexposed ones? How did he explain the results of this experiments?
The hens got sick but didn’t die. For the fresh batch, the unexposed ones died, but the exposed ones didn’t die. The old germs became too weak to kill the hens but strong enough to make the chickens immune. These became vaccines.
What is the connection between cowpox and smallpox? How did Edward Jenner use this information to create a vaccine for smallpox?
Cowpox is milder but helped them not get smallpox. He used this info to create a vaccine for smallpox by injecting cowpox.
What was unique about rabies as a disease-causing agent? How did Pasteur save Joseph Meister from rabies?
Rabies attacked the brain (?) Pasteur created weakened forms of rabies; he injected a dog with it. He used this on Joseph.
