Bacteria
prokaryotic
single cellular
many move through liquids by taillike appendages called flagella or cilia
others cannot move on own
carried on animals, insects, or dust
2 micrometers long
0.5 micormeters in diameter
live in eveyr environment
causes tuberculosis, small pox, cholera
binary fission
Virus
multicellular
no self locomotion
float and bump into objects
10-300 nanometers
live in cold, dry conditions and in all types of organisms
HIV, AIDS, Influenze, Measles, herpes
cannot reproduce, replicate with the help of cells
PROTISTS
eukaryotic
mostly unicellular
move by cytoplasmic streaming or wiht the help of flagella/ cilia
200 micrometers
livein environement with liquid water
Malaria, Giardiasis
sexual reproduction through meiosis
asexual reproduction through spores and binary fission
PRIONS
eukaryotic
unicellular
move along axions in brain
1/1000 of a bacterium
live in nervous system tissue, brain cell membrane
mad cow disease, fatal familial insomnia, chronis wasting disease
needs template of prion form to turn into another prion protein
references:
google images
book
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