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24 Cards in this Set

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Average Cell Size
1 -3 micrometers
Range of cell Size
.2-100 micrometers
the 5 Shapes of Bacteria are
1) Rod
2)coccus
3)helical
4)square/cube
5)Irregular
Rod =______= bacillus
cylindrical
coccus=_______
spherical
helical=_____=much variation
spirillum
Cells can divide in what types of planes
one,two,three, and all planes
cells that divide in one plane are called
streptococcus, streptobacillus, or diplococcus
These type of bacteria divide in only ONE plane
Rods
What do you get when cells divide in 2 planes
Sheets of cells called tetrads
What do you get when cells divide in 3 planes
cube shaped packets of cells in sarcina arrangement (8 coccus cells)
What do you get when cells divide in al planes
irregular clusters of cells called staph arrangement
The fine structure of procaryotic cells can be observed with....
an electron microscope
the gross morphology of a cell can be observed with ....
a light microscope
All bacteria have cell walls except for...
mycoplasmas
The functions of the cell wall are to give it shape and protect it from physical, chemical, and osmotic pressure.
True
Peptidoglycan is composed of what?
cross linked repeating units of peptidoglycan
name 2 types of sugars
NAM
NAG
NAM
N- acetyle muramic acid
NAG
N-acetyl glucosamine
Every organism on the planet has peptidoglycan
FALSE- only bacteria
Name the constituents of cell wall
teichoic acid, lipoproteins, lipopolysaccharides, and proteoglycan
what joins the NAM structure together?

NAM.......NAM......
l l
NAG NAG
.......= little peptide amino acids
many antibiotics work by
selective toxicity, working by preventing the cross bridge formation of the peptides