History of Micro Flashcards
who was the father of microbiology
antoni leeuwenhoek
what did antoni leeuwenhoek do
found passion in grinding lenses
created a microscope of 275X
found animalcules (bacteria) from tartar
would not share his secret lenses
what is spontaneous generation
life from nothing
comes from air
Aristotle created theory
who is francis redi
before leeuwen, disproved of aristotle’s spontaneous generation theory
proved by decaying meat experiment with maggots
animals came from other animals
who was john needham
agreed with redi originally
proved spontaneous generation by completing mutton broth experiment that showed bacteria arose spontaneously
who was lazzaro spallanzani
disproved spontaneous generation in bacteria
experiments to disprove needham:
didn’t heat broth long enough
corks were not a good seal
he boiled it for an hour and seals it…corked flasks grew, sealed flasks didn’t
who was louis pasteur
officially disproved spontaneous generation
no dust, no microbes
did swan neck flask experiment so dust could not get in but air could, led to no growth
microbe hunt with wine
created a vaccine
what is the germ theory of disease
one organism causes a specific disease
what vaccines did pasteur create
chicken cholera
rabies
anthrax
what was the rabies vaccine tested on
dried infected rabbit nerve tissue
who was robert koch
feuded with pasteur
physician
discovered cause of anthrax (bacillus anthracis) and cholera (vibrio cholerate)
koch’s postulates:proved microorganisms cause disease
isolated bacteria through use of agar (petri dishes and staining procedures)
what is koch’s postulates
organism must be found in all animals suffering from the disease but not in healthy animals
organism must be isolated from a diseased animal and grown in pure culture
cultured organism should cause disease when introduced into a healthy animal
same organism must be re-isolated from the experimentally infected animal
who expressed the importance of handwashing
ignaz semmelweis
who encouraged sterile surgery
jospeh lister
