Scientists Flashcards
(23 cards)
Discover of microorganisms
Robert Hooke 1664
Discovery of Bacteria
Antoni van Leeuwenhoek 1684
Edward Jenner
Vaccination smallpox 1798
Louis Pasteur
Mechanism of Fermentation
Defeat of spontaneous generation
Rabies
Vaccines
Principles of Immunization
Joseph Lister
Methods of preventing infections during surgeries
Discovery of Endospores
Ferdinand Cohn
Robert Koch
Kochs Postulates
Pure culture microbiology
Discovery of agents of tuberculosis and cholera
Sergei Winogradsky
Chemolithotropy
Chemoautotrophy
Nirtogen Fixation
Sulfur Bacteria
Enrichment of culture Technqiue
Martinus Beijenrick late 1800s to 1920
Discovery of many metabolic groups of bacteria
Martinus Beijenrick
Contributed concept of virus
Martinus Beijenrick
Theory of Spontaneous Generation or abiogenesis
Aristotle 384 322
Idea that living things can arise from nonliving matter
Spontaneous Generation
Example of Spontaneous Generation
Muddy soil gave rise to frogs
Mice came from moldy grain
Sewage and garbage turned into rats
Rotting meat that had been hanging in the sun all day was the source of flies
Disproved spontaneous generation through experimenting open and closed flasks with meat
Francisco Redi 1668
Disproved spontaneous generation by making and looking throuh simle microscopes
Anton Van Leeuwenhoek
Ecamined water and visualized tiny animals fungi algae and single celled protozoa; animalcules
Anton van Leeuwenhoek
Microorganisms flourished in various soap that had been exposed to the air
Supported spontaneous generation
He did not boil long enough yo kill the microbes
John Needham 1745
Boiled soups for an hour selad containers by melting the slender necks closed
Lazzaro Spallanzi 1765
The suspected pathogen must be present in all cases of the disease and absent from healthy animals
Microscopy staining
(Observe blood tissue under the microscope)
Suspected pathogen must be grown in pure culture.
Streak agar plate with sample from other healthy animal
Laboratory culture
Cells from a pure culture of the suspected pathogen must cause disease in a healthy animal.
Inoculate healthy animal with cells of suspected pathogen
Experimental Animal
The suspected pathogen must be reisolated and shown to be the same as the original.
Remove blood or tissue sample and observe microscopy.
Laboratory reisolation and culture