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35 Cards in this Set

  • Front
  • Back
Microbiology
The study of living things too small to be seen without magnification.
Microorganisms
also known as microbes, are the microscopic organisms we see in a microscope.
Major Groups of Microorganisms (6)
1. Bacteria
2. Algae
3. Protozoa (protists)
4. Helminthes
5. Fungi
6. Viruses
Viruses
noncellular, parasitic (which have to live inside of a cell), protein coated genetic material that affects other living organisms.
Prokaryotes characteristics
10x smaller than eukaryotes, lack organelles,
All prokaryotes are microorganisms
True
All eukaryotes are microorganisms
False
Examples of prokaryotic cells
Bacteria
Examples of eukaryotic cells
Protozoa, Fungi
All prokaryotes are bacteria
True
Microbial Dimensions (largest to smallest)
Fungi
Protozoa
Human cell
Bacteria
Virus
How can you see viruses?
With an electron microscope
mm
10-3 CELLS
um
10-6 BACTERIA
nm
10-9 VIRUSES
Lifestyle of a microorganism
Most live in a free area, but some are parasites, which live in a host cell like an intruder.
What is a pathogen?
a disease causing organism
Worldwide Infectious disease
there is an increasing number of diseases that we didn't know were that serious until they have hit the populations hard.
ex: SARS AIDS hepatitis C viral encephalitis
The theory of spontaneous generation was disproved by
Louis Pasteur
First microscope was founded by
Anton van Leeuwenhoek
1857 - 1914
Time where most of the disease producing was isolated
Germ Theory of Disease
was revised by Robert Koch and created his postulates to prove the theory.
Pasteurization
Louis Pasteur
First vaccine to protect humans against small pox was made by
Edward Jenner (cow pox)
Found disinfectants to prevent diseases
Joseph Lister
Gave the idea of handwashing before carrying on surgeries
Ignaz Semmelsweis
Discovered antibiotics
Paul Ehrlich
Discovered penicillin
Alexander Fleming
1945
researchers report that there are resistant bacteria
1947
first case of clinical resistance to penicillin is observed
Microbial nomenclature
the use of naming microorganisms
Taxonomy
classifying living things
Identification
discovering and recording the traits of organisms so they can be named and classified
Assigning specific names (the binomial system)
Generic name + species (italicized or underlined)
E coli
a causative agent of some types of gastroenteritis