Cell Theory (1660s)-first description of cells-proposal of cell theory
Anton van Leeuwenhoek
Animalcules (1670s-1720s)-used simple microscope with good lenses (extraordinary lens maker)-Amateur scientist-1st to see unicellular organisms
Spontaneous Generation
living things could could arise from matter randomly
Biogenesis
belief that living things can only arise from others of the same kind
Louis Pasteur
Father of Aseptic Technique-exposed that microbes are everywhere, even in air(dust)-heat could kill them and special flask could keep them absent-improved vaccines-discovered idea of attenuated vaccines
Joseph Lister
Antiseptic technique( lots of disease in hospital)-introduced sterilization w/ antiseptic solution (carbolic acid or Phenol) doctors would use these chemicals to sterilize their hands-Germ theory of Diesase
Germ Theory of Disease
that disease is caused by tiny invisible organisms called "germs"
Robert Koch
-rival of Pasteur-developed postulates for the cause of anthrax
Koch's Postulates
1 Organism must be present in all cases of the disease2. Must be able to isolate the organism and grow it in a pure culture3. Pure culture of organism must cause disease in a new host4. Must be able to isolate the organism again from the new host
Edward Jenner
-dealing with smallpox-tested child with cowpo and then with smallpox-kid survived-repeated experiment many times
IMproving vaccines
Pasteur studied chicken cholera-found an old cholera injected would protect against cholera-helped discovered vaccines for anthrax and rabies
Alexander Fleming
1928-identified fungas Penicillium -called it penicillin-1st to warn that improper use would make medicine useless (dose must be large and for a long time)
