Chapter 1 Flashcards
(33 cards)
Robert Hooke
1st published his observations and drawings of cork shavings as he saw them through a microscope
Anton van Leeuwenhoek
1st described microorganisms: observed in skin, pond water, blood, teeth, and described as bacteria fungi, algae, and protozoa
Francisco Redi
Performed the experiments with the jars and meat which supported biogenesis
Edward Jenner
Through observation determined that smallpox could be prevented through vaccinations. Discovered by watching milkmaids who did not get cowpox
John Snow
Discovered the cause of Cholera transmission in London
Ignaz Semmelweis
Enacted for doctors to begin washing hands after observing women dying in hospitals from childbirth vs. women not dying with midwives
Louis Pasteur
Proposed the germ hypothesis in 1862
Proved that yeast was responsible for fermentation
Invented Pasteurization tech. of heating to kill pathogens
Did the Swan Flask Experiment
1885 developed rabies vaccine
Joseph Lister
Developed the practice of antisepsis chemicals for disinfection
Robert Koch
Isolated the tubercle bacillus. He added gelatin to his broth and was to grow bacterial colonies in a petri dish
Koch’s postulates
standardized for linking a specific organism to a specific disease
Sergei Winogradsky
Soil microbiologist.
Showed that some microbes were photosynthic
Recognized the beneficial roles of nitrogen fixing bacteria
Martinus Beijerinck
Soil microbiologist.
Isolated nitrogen fixing bacteria growing inside plant roots. (root nodules)
Also worked on Virus Theory with Ivanowski
Dimitri Ivanowski
Proposed the existence of viruses
Did the tobacco plant experiment
Elie Metchnikoff
Father of Immunology
Observed WBC from humans destroying bacteria, i.e Phagocytosis
Luria & Dulbruck
Discovered that bacteria can mutate to generate resistance to viral infection
Beadle & Tatum
Demonstrated that one gene codes for one enzyme
Hersey & Chase
Showed that DNA is the genetic material of inheritance
Crick
Used E. coli and a virus to show how the DNA code makes protein
Paul Erlich
Developed Salvarsan, the “magic bullet” that cured syphillis
Alexander Flemming
Observed that a species of Penicillium mold killed bacteria cells.
Developed Penicillin
Craig Venter
Father of Genomics.
Sequenced entire chromosomal content from the different species including humans
Abiogenesis
The belief that life generates spontaneously from decaying material by spontaneous generation.
Biogenesis
Life generates from the decaying material, not the material itself.
Miasma
thought to be the bad air from rotting organic matter