Intro to Microbial World Flashcards
Alexader Fleming
Accidently founded penicillin
MRSA
methicillin-resistant S.aureus
VRSA
Vancomycin-resistant S.aureus
Paul Ehrlich
Developed first synthetic drug (salvarsan)
*treated syphilis
Chemotherapy
Treatment of Disease with chemical
Antibiotics
natural chemicals produced by bacteria and Fungi
Synthetic Drug
Prepared in a lab
Edward Jenner
smallpox vaccine
Robert Koch
First to prove bacterium causes disease
Robert Kochs Postulate
- Must be present
- Isolate in pure form
- Inject in healthy host
- Reisolate germ
Joseph Lister
Phenol to prevent surgical wound infections
Florence Nightingale
Nursing antiseptic techniques
Ignaz Semmelweis
hand washing between deliveries
Germ Theory
Microbes can cause disease
Pasteur
Created pasteurization
Just bacteria: juice –> lactic acid
Just yeast: alcohol
Both–>Alcohol + Lactic Acid
Spontaneous Generation
Living organisms arise from nonliving matter
Biogenesis
All living things arise only from living things
Louis Pasteur
Against spontaneous generation
Proved theory of biogenesis
Lazzaro Spallanzani
Against Spontaneous generation
Boiled broth for 1 hour, glass neck melted to seal flask
John Needham
For spontaneous generation
Nutrient broth boiled briefly, placed in cork-seak flask
Francesco Redi
Against spontaneous generation
Tested on maggots on decaying maggots
“Life only comes from other life”
Auto Van Leeuwenhoek
First to discover bacteria world
Observed simple organisms through simple microscope
Scientific Names
First letter of genus capitalized, then species. Italicized
Ex. Staphylococcus aureus (S.aureus)
Carlos Linnaeus
Established system of scientific nomenclature
7 Taxa
- Kingdom
- Phylum
- Class
- Order
- Family
- Genus
- Species
3 Domains of Life
Bacteria
-Cells walls contains peptidoglycan
Archaea
-Cell walls, if present, lack peptidoglycan
Eukarya
-Protists, Fungi, Plants, Animals
Taxonomy
classifying into categories based on relatedness
Bacteria
-Unicellular
-Prokaryotes
-Peptidoglycan composed in cell wall
Archaea
-Prokaryotic but no peptidoglycan
-Live in extreme enviroments
-Methogens (produce methane waste)
-Extreme Halophile (halo=salt;phillic=loving)
-Extreme Thermophiles (therm=heat)
Fungi
-Eukaryotes (have nucleus)
-Unicellular=yeast
-multicellular=molds
Groups of Microbes
-Bacteria
-Archaea
-Fungi
-Protozoa
-Algae
-Viruses
Viruses
Acellular (non-living)
-Genome (DNA or RNA)
-Capsid
-Obligatory intracellular parasites
-Be inside a cell in order to reproduce
Protozoa
Unicellular Eukaryotes
-Caragorized by motility (how they move)
-Pseudopods
-Cilia
-Flagella
-non-motile
How are microbes beneficial to life?
-Recycle vital elements
-Food + manufacturing industry
-Bioremediation
-Sewage treatment
-Insect pest control
Algae
-Photosynthetic eukaryotes
-Produce o2