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Microbiology > Domains of Bacteria and Archaea > Flashcards

Domains of Bacteria and Archaea Flashcards

1
Q

Largest taxonomic group

A

Proteobacteria

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2
Q

Proteobacteria are…?

A

all gram negative

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3
Q

The genera described are either…(3)

A
  1. Unique
  2. Medically important
  3. Environmentally benefical
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4
Q

Pelagibater is…(3)?

A
  1. A unique marine species and very small but abundant bacteria.
    Pelagus “sea”, bacter “bacterium”
  2. Does not causes disease in humans
  3. Fixes nitrogen
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5
Q

Caulobacter is…?

A

A motile organism that loses its flagella to form a stalk (holdfast) and anchor to surfaces.

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6
Q

Hyphomicrobium is…?

A

An organism that forms a hypha and adheres to surfaces opposite of the hypha.

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7
Q

Endotoxin vs exotoxin vs enterotoxin?

A

Endotoxin- toxin released when the cell is lysed.
Exotoxin is secreted toxin
Enterotoxin- secreted and affects the intestinal wall (enteric)

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8
Q

Rhizobium (3)

A
  1. Alphapro.
  2. Living in the root of legumes
  3. Cannot nitrogen fixate
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9
Q

Azospirillum (3)

A
  1. Alphapro.
  2. Lives on the plant surface
  3. It can N2 fixate “AZO”
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10
Q

Agrobacterium (3)

A
  1. Alphapro.
  2. Plant pathogen
  3. Cannot nitrogen fixate
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11
Q

Nitrobacter (3)

A
  1. Alphapro.
  2. Nitrification NO2 –> NO3
  3. Chemoautotroph
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12
Q

What is mostly reduced in nitrogen fixation?

A

Ammonia

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13
Q

What oxidizes NH4 to NO2?

A

Nitrosomonas

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14
Q

What is N2 to NH3?

A

Nitrogen Fixation

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15
Q

Denitrification is caused by (NO3» NO)?

A

Thiomargarita namibiensis

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16
Q

Bartonella (3)

A
  1. Alphapro.
  2. Facultative intracellular parasite
  3. An infected flea bites Piper the cat! Then Piper licks my wound and I get cat-scratch fever :(
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17
Q

Brucella (3)

A
  1. Alphapro
  2. Facultative intracellular parasite
  3. Infects cattle and spreads to humans via phagocytosis
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18
Q

A facultative intracellular parasite can reproduce where? (2)

A

Inside or outside the cell

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19
Q

An obligate intracellular parasite must reproduce where?

A

Inside the cell

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20
Q

“R”ickettsia (3)

A
  1. Alphapro.
  2. Highly pleomorphic and obligate
  3. Transmitted from ticks and insects to humans causing Rocky Mountain spotted fever.
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21
Q

Ehrlichia (2)

A
  1. Alphapro.

2. Similar to Rickettsia

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22
Q

What makes Wolbachia endosymbiotic? Reproduction?

A

Being the most infectious bacterial genus in the world, Wolbachia can infect insects and is used for biological control. For example, Mosquitos that carry the Dengue virus cannot spread it if they are infected with Wolbachia and it does not kill the organism but it infects its eggs.

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23
Q

Betaproteobacteria are (2)

A
  1. All aerobic

2. Chemo auto and heterotrophs

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24
Q

The sulfur cycle involves which organism?

A

Thiobacillus organism

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25
Q

Burkholderia (2) (BETA)

A
  1. B. cepacia found in onions and highly problematic in hospitals.
  2. B. pseudomallei
26
Q

Bordetella (2)

A
  1. Betapro.

2. B. pertussis causes “whooping cough”

27
Q

Neisseria (3)

A
  1. Betapro.
  2. N. meningitidis causes meninigococcal meningitis
  3. N. gonorrhoeae causes gonorrhoeae
28
Q

Gammaproteobacteria is ?

A

The largest subgroup of proteobacteria

29
Q

Actinobacteria is ?

A

Facultative anaerobes

30
Q

Nocardia, Mycobacterium, and Actinomyces are?

A

Actinobacteria

31
Q

High GC content is found in?

A

Actinobacteria

32
Q

Mycoplasmas are ?

A

Tenericutes

33
Q

What Firmicuties gives you diarrhea? (LEAK -lec) (3)

A

Listeria monocytogenes!
Enterococcus
Clostridium

34
Q

What Firmicutie is in love with your blood?

A

(beta) Streptococcus. Clear blood plate

35
Q

Gamma-streptococcus love blood? (T/F)

A

False

36
Q

What Firmicutie is found in Yoplait?

A

Lactobacillus!

37
Q

What Firmicutie is found on your skin?

A

Staphylococcus aureus

38
Q

What organism causes pimples (acne)?

A

Propionibacterium acnes (P. acnes)

39
Q

What Firmicutie are endospores rods?

A

Bacillus

40
Q

Firmicutes are gram negative? (T/F)

A

False!

41
Q

Nonproteobacteria are gram negative? (T/F)

A

True!

42
Q

Cyanobacteria (2)

A
  1. Nonpro.

2. blue and green bacterian

43
Q

Purple and green are all in different phylum? (T/F)

A

True!

44
Q

Gemmata obscuriglobus Planctomycetes is nonpro or gammapro?

A

Nonpro.

45
Q

Is Chlamydia trachomatis a medically important species? (T/F)

A

True

46
Q

Spirochaetes are coiled, which species causes Lyme Disease (BB)?

A

Borrelia burdgorferi (Lyme Disease)

47
Q

Salvarsan eradicated which species of nonproteobacteria?

A

Treponema pallidum

48
Q

Does Fusobacterium have a rod shape? (T/F) Which shape?

A

False, it has a spindle shape.

49
Q

Campylobacter and Heliobacter are epsilonproteobacteria and what else? ?

A

Microaerophilic

50
Q

Myxococcus are spore like and deltaproteobacteria? (T/F)

A

True

51
Q

Bdellovibrio is gram-negative and what else suckaaa?

A

Leech to other G-N bacteria.

52
Q

Pasteurella is what Class ?

A

Gammaproteobacteria

53
Q

H. influenzae is the flu? (T/F) Which is it?

A

False, H. influenzae is the causes of bronchitis

54
Q

Pasteurella is found in which dragon?

A

Komodo Dragon?

55
Q

E. aerogenes is under what order

A

Enterobacteriales

56
Q

Enterobacteriales is under which phylum?

A

gammaproteobacteria

57
Q

Proteus has rings? T/F

A

True

58
Q

Serratia has a red pigment T/F

A

True

59
Q

A. baumanii concerns?

A

Acinetobacter rapidly resistant to antibiotics

60
Q

Moraxella can cause conjunctivitis? T/F

A

True

Microbiology (6 decks)

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