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Microbiology 1: Bacteriology > Basic > Flashcards

Basic Flashcards

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1
Q

Bipolar bodies

Safety pin appearance in Wayson stain

A

Yersinia pestis

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2
Q

Tackhead bacillus

Drumstick/Lollipop appearance

A

Clostridium tetani

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3
Q

Tumbling motility in Hanging drop test

A

Listeria

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4
Q

Darting motility in Hanging drop test

A

Campylobacter

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5
Q

Gliding motility in Hanging drop test

A

Capnocytophaga

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6
Q

Causative agent of Tetanus/Lock jaw

A

Clostridium tetani

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7
Q

Toxin produced by Clostridium tetani that causes Tetanus and spasmodic contracions

A

Tetanospasmin (neurotoxin)

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8
Q

Causative agent of Botulism

A

Clostridium botulinum

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9
Q

Toxin produced by Clostridium botulinum that causes Botulism and flaccid paralysis

A

Botulinum toxin (neurotoxin)

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10
Q

Pink to purple colonies with green metallic sheen on EMB

A

Escherichia coli

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11
Q

Pink colonies with dark center on EMB

Fish eye colonies

A

Enterobacter

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12
Q 
The following are H2S (+) organisms except:
Salmonella
Proteus
Arizona
Corynebacterium
Edwardsiella
A

Corynebacterium

SPACEd
Salmonella
Proteus
Arizona
Clostridium
Edwardsiella
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13
Q

Bulls eye colonies on CIN (Cefsulodin-Irgasan-Novobiocin)

A

Yersinia enterocolitica

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14
Q

Exhibit satellitism, dew drop, satellite colonies around S. aureus
Mousy or mouse net smell, musty basement odor

A

Haemophilus influenzae

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15
Q

Preferred medium for isolating Bordetella pertussis

A

Regan Lowe (enrichment and selective)

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16
Q

Medusa head colonies

A

Bacillus anthracis

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17
Q

Beaten egg consistency
Bamboo pole arrangement on culture
String of pearls on MHA with penicillin

A

Bacillus anthracis

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18
Q

Molar tooth appearance

A

Actinomyces

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19
Q

Fried egg appearance on culture
Lack cell wall
Smallest free living organism

A

Mycoplasma

No cell wall: Mycoplasma, Ureaplasma

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20
Q

G(+) bacilli, non sporeforming, nonpigmented tan to buff colonies that are dry, warty, granular and rough resembling cauliflowers

A

Mycobacterium tuberculosis

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21
Q

G(-) bacilli, obligate aerobe, grape like or corn tortilla like odor (production of 2-aminoacetaphenone) with serrated, confluent growth

A

Pseudomonas aeruginosa (swarming motility)

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22
Q

All enterobacteriaceae are aerogenic except:

A

Shigella

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23
Q

Biological indicator/Quality control in autoclave

A

Spores of Bacillus stearothermophilus

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24
Q

Biological indicator/Quality control in oven, dry heat sterilization

A

Spores of Bacillus subtilis var. niger

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25
Q

Biological indicator/Quality control in Ethylene Oxide (ETO)

A

Bacillus subtilis var. globigii

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26
Q

Biological indicator/Quality control in Ionizing radiation

A

Bacillus pumilis

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27
Q

Most abundant normal flora in a throat and nasopharyngeal specimen

A

Alpha hemolytic Strep: Viridans strep

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28
Q

Most common agent of UTI

A

Escherichia coli

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29
Q

Exhibits classic starbust pattern on gram stain

Resembles lymphocytes

A

Cryptococcus neoformans

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30
Q

G(+) cocci in grape like clusters

Creamy white pin head colonies on BAP

A

Staphylococcus

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31
Q

Beta zone of hemolysin on BAP

A

Staphylococcus aureus

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32
Q

Golden yellow growth on Loeffler’s Serum Slant (LSS)

A

Staphylococcus aureus

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33
Q

Lemon yellow growth on Loeffler’s Serum Slant (LSS)

A

Staphylococcus citreus

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34
Q

Porcelain white growth on Loeffler’s Serum Slant (LSS)

A

Staphylococcus albus/

Staphylococcus epidermidis

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35
Q

Flame/Bullet/Lancet shaped diplococci on Gram stain

A

Streptococcus pneumoniae

36
Q

Causative agent of Lobar pneumonia with rusty sputum

A

Streptococcus pneumoniae

37
Q

Alpha hemolytic on BAP

Causative agent of Subacute Bacterial Endocarditis (SBE)

A

Viridans streptococci

38
Q

Viridans strep associated with dental carries

A

Streptococcus mutans

39
Q

Nutritionally Variant Streptococci (NVS)

Need cysteine/pyridoxal (vit B6)

A

Abiotrophia spp.

40
Q

G(-) diplococci resembling coffee beans or kidney beans

A

Neisseria sp. except N. elongata (rod shaped)

41
Q

Causative agent of ophthalmia neonatorium in newborns

A

Neisseria gonorrhoeae

42
Q

Causative agent of Waterhouse-Friderichsen syndrome: hemorrhage in adrenal gland

A

Neisseria meningitidis

43
Q

Causative agent of Montezumas revenge, turista, travelers and childhood diarrhea
Profuse watery stool

A

Enterotoxigenic Escherichia coli (ETEC)

44
Q 
Causes a Shigella like infection
A. ETEC
B. EIEC
C. EHEC
D. Shigella
A

Enteroinvasive Escherichia coli (EIEC)

45
Q

Friedlander’s bacillus

A

Klebsiella pneumoniae

46
Q

Exhibits a rancid potato-like odor

DNAse, Gelatinase and Lipase (+)

A

Serratia odorifera

47
Q

Causative agent of Enteric/Typhoid fever: Pea soup stool

A

Salmonella

48
Q

Causative agent of Bacillary dysentery

A

Shigella dysenteriae (Shigellosis)

49
Q

Non spore forming g(-) anaerobic rods, lysine deamination and MR (+)
Exhibit swarming motility

A 
Proteus mirabilis (OX-K): putrid odor
Proteus vulgaris (OX-2, OX-19)
50
Q

Causative agent of Black death
Stalactite pattern on broth culture
Exhibits a Safety pin appearance due to bipolar bodies inclusion on Wayson stain

A

Yersinia pestis

51
Q

Old sock odor on Mannitol Salt agar

A

Staphylococcus aureus

52
Q

Freshly plowed field odor

A

Nocardia sp.

53
Q

Causative agent of Swimmer’s ear: Mild otitis externa/media

A

Pseudomonas aeruginosa

54
Q

Causative agent of Ecthyma gangrenosum: skin lesions

Hot tub/Whirlpool dermatitis

A

Pseudomonas aeruginosa

55
Q

Causes respiratory infections in patients with cystic fibrosis

A

Burkholderia cepacia

56
Q

Causative agent of Glanders disease: a disease of horses transmittable to humans

A

Burkholderia mallei

57
Q

Causes mellioidosis: Glanders like
Whitmore’s bacillus
Vietnamese Time Bomb (can reactivate after 9years)

A

Burkholderia pseudomallei

58
Q

Motile G(-) anaerobic bacilli, oxidase (+)
Produces Choleragen toxin causing Rice water stool
“Fish in the stream” appearance
Yellow colonies on TCBS (sucrose fermenter)

A

Vibrio cholerae

59
Q

G(-) anaerobic comma shaped bacilli

A

Vibrio sp.

60
Q

Pfeiffers bacillus

Causes meningitis in children <5 yrs old

A

Haemophilus influenzae

61
Q

Formerly known as Koch weeks bacillus

Causative agent of Pink Eye Conjunctivitis

A

Haemophilus aegypticus

62
Q

Smallest pathogenic bacilli
Infective agent of Soft chancre, chancroid
School of fish arrangement

A

Haemophilus ducreyi

63
Q

Bacteria that can grow at 42-43C

A

Pseudomonas aeruginosa

Campylobacter

64
Q

S-shaped G(-) bacilli resembling “Sea gulls wings” appearance associated with gastritis and diarrhea exhibiting darting motility by single polar flagella

A

Campylobacter

65
Q

G(-) bacilli, optimum temp for growth at 35-37C, motile with 3-6 flagella
Associated with peptic ulcer

A

Helicobacter

66
Q

Causative agent of Whooping cough

Mercury droplet colonies

A

Bordetella pertussis

67
Q

Non motile, G(-) aerobic cocobacilli

Causative agent of Brucellosis, undulant fever, Malta fever

A

Brucella

68
Q

Causative agent of Legionnaire’s disease, Pontiac fever

A

Legionella pneumophila

69
Q

Causative agent of Pittsburgh pneumonia

A

Legionella micdadei

70
Q

Wiga’s agent of pneumonia

A

Legionella bozemanni

71
Q

Causes Shipping fever in cattles

Causative agent of Pasteurellosis

A

Pasteurella multocida

72
Q

Obligateky aerobic non motile, faintly staining g(-) coccobacilli
Causes Tularemia

A

Francisella

73
Q

Associated with bacterial vaginosis, clue cells in cytology/Paps
Fishy amine like odor in Whiff/Sniff test

A

Gardnerella vaginalis

74
Q

G(-) non spore forming bacteria
Causative agent of:
-Rat bite fever: Spirillum minor: from animal bite
-Haverhill fever: from ingestion of contaminated milk

A

Streptobacillus moniliformis

75
Q

G(-) capnophilic, fusiform or filamentous bacilli exhibiting gliding motility

A

Capnocytophaga

76
Q

Pleomorphic, Encapsulated g(-) bacilli

Causative agent of Granuloma Inguinale or Donovanosis

A

Calymmatobacterium granulomatis

77
Q

Corroding bacterium with characteristic smell of bleach on agar

A

Eikenella corrodens

78
Q

Spore forming bacteria

A

Bacillus

Clostridium

79
Q 
Aerobic G(+) bacill, catalase (+)
Causative agent of 
Cutaneous anthrax
Pulmonary anthrax (Woolsorter's disease)
Gastrointestinal anthrax
A

Bacillus anthracis

80
Q 
Causative agent of myonecrosis (gas gangrene)
Exhibits double zone of hemolysis
Reverse CAMP (+)
Lecithinase (+)
Nagler reaction (+)
A

Clostridium perfringens

81
Q

Agent of food (canned goods), wound, and infant botulism “Floppy baby”

A

Clostridium botulinum

82
Q

Causes spastic contractions and lock jaw

A

Clostridium tetani

83
Q

Cause of antibiotic-associated pseudomembranuos colitis
(Clindamycin: 1st antibiotic)
Cultured on CCFA (Cylcoserine Cefoxitin Fructose Agar)

A

Clostridium difficile

84
Q

Klebs-Loeffler bacillus

A

Corynebacterium diphtheriae

85
Q

Club shaped, dumb bell shaped, Parallel, Palisading, Picket fence, Chinese character appearance

A

Corynebacterium sp,

86
Q

Multidrug resistant diphthteroid associated with endocarditis, pneumonia, perotonitis

A

Corynebacterium jeikeium

Formerly group JK

Microbiology 1: Bacteriology (2 decks)

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