introduction Flashcards
(50 cards)
the scientific study of microscopic organisms and viruses
bacteriology
organisms studied with a microscope
microorganisms
he reported that life’s smallest structural units were “little boxes” or cells
robert hooke
hooke’s discovery marked the beginning of what theory?
cell theory
the first to observe and describe live microorganisms
anton van leeuwenhoek
he discovered animalcules
anton van leeuwenhoek
magnification of leeuwenhoek’s microscope
50-300x
demonstrated that maggots did not generate spontaneously
francesco redi
he proposed that organic matter possessed a vital force that could give rise to life
john needham
he proposed that air transports microorganisms
lazzaro spallanzani
he challenged the case for spontaneous generation with the concept of BIOGENESIS
rudolf virchow
he resolved the issue of spontaneous generation
louis pasteur
year when the issue of spontaneous generation was resolved
1861
this process is used to make wine and beer
fermentation
process used to reduce spoilage and kill potentially harmful bacteria in milk as well as in some alcoholic drinks
pasteurization
yeasts convert the sugars into alcohol in the absence of air
fermentation
form of sterilization that uses moist heat for 3 days to eradicate vegetative cells and endospores
tyndallization
who develop tyndallization
john tyndall
year of fermentation
1857
year of pasteurization
1864
year of gram staining proc.
1884
who developed gram staining proc.
hans christian gram
he demonstrated that routine handwashing can prevent the spread of diseases
ignaz semmelweis
performed surgery under aseptic conditions using PHENOL
joseph lister
