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Microbiology:Bacteriology > Aerobic Gram Positive Bacilli > Flashcards

Aerobic Gram Positive Bacilli Flashcards

1
Q

colonial morphology of Bacillus anthracis in BAP

A

Medusa head

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2
Q

reaction of Bacillus anthracis in Egg yolk agar

A

positive

*positive for lecithinase

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3
Q

growth factor of Bacillus anthracis

A

Thiamine (B1)

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4
Q

cutaneous anthrax

A

black eschar

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5
Q

pulmonary anthrax

A

woolsorter’s disease

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6
Q

colonial morphology of Bacillus cereus in BAP

A

frosted glass

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7
Q

best specimen for B. cereus

A

suspected food

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8
Q

causes eye infection in Heroine addicts

A

Bacillus subtilis

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9
Q

exhibits blister colonies in BAP

A

Bacillus pumilis

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10
Q

characterized by parasporal crystals in pesticides

A

Bacillus thuringiensis

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11
Q

spore stain

A

malachite green

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12
Q

plating of Bacillus

A

heat/alcohol shock technique before plating

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13
Q

polymixin lysozyme EDTA thallous acetate (PLET)

A

media for Bacillus (heavy contamination)

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14
Q

bicarbonate agar

A

capsule of Bacillus anthracis

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15
Q

result of Bacillus anthracis in gelatin agar

A

inverted pine tree

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16
Q

thermostable anthrax

A

ascoli test

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17
Q

catalase reaction of Bacillus

A

catalase positive

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18
Q

club shaped bacteria

A

Corynebacterium

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19
Q

contributes to better growth of Corynebacterium

20
Q

responsible for pseudomembranous formation in respiratory tract

A

Corynebacterium diphteriae

21
Q

mode of action of C. diphteriae

A

inhibits protein synthesis

22
Q

cutaneous diphtheriae

A

velat sore/ barcoo rot

23
Q

C. diphteria group

A

C. diphteria
C. ulcerans
C. pseudotuberculosis

24
Q

culture media for C. diphteriae

A

Tinsdale medium

Cysteine Tellurite agar

25
Q

inhibitor of diphteria toxin

26
Q

isolated in wound infections of AIDS patients

A

C. pseudodiphteriticum

27
Q

cause of diphteroid prosthetic valve

A

C. jeikeium

28
Q

catalase reaction of Corynebacterium

A

catalase negative

29
Q

exhibits tumbling motility

A

Listeria monocytogenes

30
Q

lowest temperature where Listeria is able to grow

31
Q

most important defense mechanisms against Listeria

A

macrophages and Tcells

32
Q

consequence of Listeriosis in pregnant women in their 3rd trimester

A

spontaneous abortion and still birth

33
Q

result of Listeria in SIM agar

A

umbrella-shaped growth/ inverted christmas tree appearance

34
Q

cold enrichment technique

A

4C especially to placental specimen

35
Q

cause of red disease

A

Erysipelothrix rhusiopathiae

36
Q

result of E. rhusiopathiae in gelatin agar

A

Test brush appearance

37
Q

best specimen for E. rhusiopathiae

A

tissue biopsy

aspirates from skin lesions

38
Q

partially acid fast aerobic actinomycetes

39
Q

intracellular parasites that have tropism to neuronal tissue

A

Nocardia asteroides complex: N. asteroides and N. brasiliensis

40
Q

structure containing sulfur granules

A

actinomycetoma

41
Q

colonial morphology of N. asteroides

A

Bread crumbs looking colonies

chalky white, orange tan

42
Q

colonial morphology of Rhodococcus equi

A

pale pink/yellow coral -like slimy colonies

43
Q

characterized by rhizoid edges with white/orange pigment

A

Tsukamurella

44
Q

characterized by black opaque dot colonies

A

Arcanobacterium

45
Q

characterized by large medusa head with rhizoid growth on yeast nutrient agar

46
Q

characterized by molar tooth appearance

A

Actinomadura

47
Q

causative agent of Whipple’s disease in middle aged men

A

Tropheryma whippeli

Microbiology:Bacteriology (10 decks)

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