Pasteur’s Discoveries
What did Pasteur prove causes fermentation?
Living microbes
Who received a microscope from his wife and used it to study germs?
Robert Koch.
What disease did many sailors suffer from due to lack of vitamin C?
Scurvy.
Which scientist discovered the principle of vaccination through chicken cholera?
Pasteur
Before germ theory, what did many doctors believe caused disease?
Bad air / miasma / “poisoned air.”
Pasteur showed that living things can only come from what kind of things?
Living things.
Koch proved anthrax was caused by what?
Bacteria.
What cured Jacques Cartier’s sailors?
Pine-needle tea.
Pasteur weakened anthrax bacteria by using what method?
Controlled heating.
What did some doctors call Pasteur when he first suggested germs caused disease?
A “quack.”
What shape was the special flask Pasteur used to disprove spontaneous generation?
S-shaped flask.
How did Koch convince doctors who doubted germ theory?
A 3-day public demonstration of experiments.
What food did Dr. James Lind learn prevented scurvy?
Citrus fruits.
During epidemics, how many chickens could farmers lose to cholera?
11 of every 12
What did death from childbed fever become so common in some cities that officials threatened?
To burn the hospital.
Pasteur discovered the mild form of chicken cholera by doing what?
Accidentally letting the mixture sit / by accident.
What did farmers have to do to stop anthrax from spreading?
Burn or bury infected animals
What ingredient in pine-needle tea saved the sailors?
Vitamin C.
Rabies is caused by what type of organism?
A virus.
Why did people believe in spontaneous generation for so long?
They saw life appear where there was decay, not realizing microbes were present.
Why did Pasteur reject the theory of evolution?
He had scientific and religious reasons.
Koch discovered that adding what to his slides made bacteria visible?
Chemical dyes.
Which group refused to believe food could cure disease?
The British Admiralty.
What was Pasteur’s conclusion after observing weakened germs causing protection?
Weak germs can make the body immune.
Pasteur’s famous phrase rejecting spontaneous generation was what?
“Only from microbes arise microbes.”