Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
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
|