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Microbiology Exam 3
Bacteria and Archaea
11
Biology
Undergraduate 3
11/01/2006

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Term
Ectothiorhodospora
Definition
-Spirilla, polar flagella
-Photoautotropg
-As respires, deposits granules on outside of cell
-meromictic lakes
-oxidize H2S, produce elemental S
Term
Rhodoseudomonas
Definition
-Divide by budding
-Rods
-photohetertroph
-outside Carbon source
-energy from light
Term
Nitrosomonas
Definition
-Ammonia Monooxygenase
-nitrates ammonia
-ammonia oxidizer
-Sewage, Soil, Freshwater, Marine
-nonmotile
Term
Nitrobacter
Definition
-soil, freshwater, marine
-motile
-nitrate-oxidizing
Term
Beggiatoa
Definition
-survives by moving water
-live in flowing water/gradients
-pump O2 to plant roots(rice paddies)
-uses H2S and O2
-removes H2S
-detoxes ribosphere
Term
Thioploca
Definition
-large chemotroph
-uses H2S accumulated in ocean water near volanic/gethermal regions
Term
Ralstonia
Definition
-hydrogen oxidizer
-H2//O2->H2O(-237kJ)
Term
Psuedomonas
Definition
-CO as electron donor and C source
-CO oxidation
-ETS similar to humans
-don't ferment
-good % are pathogenic
-Pseudomonas aerginosa(problem in hosp) hard to kill
-break down hydrocarbons
Term
Zymomonas
Definition
-in pseudomonas family
-ferments
-sugars to alcohols
-spittle beer
-used for beverages
Term
Acetobacter
Definition
-incomplete respiration
-used to make vinegar
-colonize fruite, aerobic
Term
Azotobacter
Definition
-nitrogen fixing
-requires high voltage reducing equivalnts
-oxyphobic
-free living
-covered with slime layrs
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