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Microbiology

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by

elizabeth jones

on 20 September 2013

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Transcript of Microbiology

Microbiology:
*what does micro mean?
*bio?
*ology
The study of little things like:
BACTERIA
VIRUSES
PROTISTS
Bacteria
classified by shape:
Spherical
like Streptococcus and Staphlyococcus
Rod-shaped
like E.coli
Spiral shaped
like spirillum
How big are protists, bacteria and viruses?
*protists are tiny
*bacteria are really really tiny
*viruses are WAY more tiny than either one!
Viruses:
*super duper small
*not made of cell so not even considered living
*simply a protein capsule containing DNA
*cannot reproduce on their own
roles of bacteria
1.cause infections, killed with antibiotics
2. decomposers-bioremediation
3.in our food
*good- cheese
*bad- spoiled milk, cook meat, e.coli contamination
4. bioengineering
*insulin producing bacteria
reproduce with the lytic cycle
cause disease:
combat with vaccines
(dead or weakened versions of the virus so your body makes antibodies to it)
http://www.cellsalive.com/howbig.htm
Protists are the largest group in microbiology...and the most complex...and diverse
Protists:
single celled
have organelles
found everywhere, common in water
have specialized structures for moving, which is what they are classified by
Paramecium:

Euglena
Ameoba
Volvox:
autotrophs
very important! because they are a colony of single celled protists
they are the evolutionary connection between single celled and multicellular organisms
The END
Full transcript