Exam 1 review part 2

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created 5 years ago by nbogdanoff
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1

Glycocalyx

  • outside cell wall
  • capsule: neatly organized
  • slime layer: unorganized and loose
  • Extracellular polysaccharide allows cell to attach (usually sticky)
  • capsule prevents phagocytosis
2

Fagella

  • driven by rotary engine
  • attache to protein hook
  • attached to membrane wall by basal body
3

motile cells

  • run or tumble
  • Chemotaxis- driven by chemicals
  • phototaxis- driven by light
4

Fimbriae

  • Used by bacteria to adhere to other bacteria, animal cells, or inanimate objects
  • cannot be swept away by fluid
  • Require colonization
5

Pilli

  • Two types
    • transfer DNA by mating bridge (conjunction)
    • Promotes motility (twitching)
6

cell wall

prevents bacteria cell from rupturing when water pressure is greater inside the cell than outside

7

NAD & FAD

Electron carriers, mainly in catabolic reactions

8

aerobic respertion

Final electron acceptor in etc is O2 (humans)

9

anaerobic resperation

Final acceptor in etc is NOT O2

10

Fermentation

  • does not need O2
  • Does not used Krebs or etc
  • Uses organic molecules as final acceptor
  • Produces small amounts of ATP