m&m pt 3
Terms
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copy deck
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Bacteria and Archaea are called procaryotes or procaryotic cells because ___?
⬢ True or false? Some microorganisms are procaryotic, some are eucaryotic, and some are not cells at all. -
they do not have a true
nucleus.
true -
Procaryotic cells are about __ times smaller than
eucaryotic cells.
⬢ Procaryotic cells reproduce by ___ fission.
⬢ Unlike eucaryotic cells, the cytoplasm of eucaryotic cells is not filled with ___.
- 10/ binary/ internal membrane
- coccua- ___shaped
- bell shaped
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Cell morphology
bell shaped?
longer than they are wide?
longer than they are wide but fat?
one little curve?
gently curving back and forth?
tightly wound like a corkscrew?
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coccus
bacillus
coccobacillus
vibrio
spirullum
spirocite
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Diplo....
Strepto
⬢ Tetrad
⬢ Sarcina
⬢ Staphylo
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Two
Chains
Groups of 4
– Groups of 8
– Irregular clusters -
Gram-(positive/negative) bacteria have a thick layer of peptidoglycan;
Gram-(positive/negative) bacteria have a much
thinner layer. - positive/ negative
-
___ are threadlike, protein appendages that
enable bacteria to move.
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flagella
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• Peritrichous bacteria – flagella over entire surface
• Lophotrichous bacteria – flagella at one end
• Amphitrichous bacteria – flagella at both ends
• Monotrichous bacteria – single polar flagellum
- ...