bmsc 210 Flashcards
Carl Woese
Started the comparison of rRNA nucleic acid sequences. Before his work, the distinguishment between Archaea and Bacteria was unknown
Thomas Cech
Discovered RNA inside a protist that had catalytic capabilities; lead to the discovery that other catalytic RNA molecules meant that formation of early cells (catalytic, structural and hereditary roles)
Hooke
Published the first drawings of microorganisms named: Fungus Mucor in his book (Micrographia) which gave instructions on how to build a microscope
Leeuwenhoek
Used Micrographia by Hooke to contructe a dark field microscope (observed bacteria and protists)
First to observe and accuratley describe microorganisms
Pasteur
Disproved the theory of spontaneous generation through swan neck tube experiment.
Fermentation is caused by microorganisms and developed pasteurization to kill harmful microbes in food and drink.
Developed rabie vaccines and supported germ theory
Lister
Developed antiseptic surgery techniques using heat sterilization and phenol to reduce surgical infections and provide evidence for germ theory disease
Germ theory
Disease is caused by microogranisms like bacteria viruses and fungi
Koch
Demonstrated link between specific microorganisms and diseases using a series of steps known as Koch’s postulates
Bacillus anthracis from anthrax infected animals then injected it into healthy mice then the mice got sick
Used Mycobacterium Tuberculosis then injected them into guinea pigs then it developed tuberculosis. His experiments established a causal relationship between bacteria and their dieases
Beijernick
Proposed the term “Filterable virus” desmonstrated that the infectious agent that caused tabacco mosaic disease was an acellular entity
The virus were tiny acelluar agents
Winogradsy
Discovered that soil bacteria can oxidize iron, sulfur, ammonia to obtain energy used by bacteria to incorporate CO2 into organic matter
Studied decomposition of cellulose and isolated anaerobic nitrogen fixing soil bacteria
