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Microbiology > Bacteria > Flashcards

Bacteria Flashcards

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Biology 101 flashcards
1
Q

Gram positive cocci in clusters
Catalase positive
Coagulase negative
Novobiocin sensitive

A

Staphylococcus epidermidis

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2
Q

Gram positive cocci in clusters
Catalase positive
Coagulase negative
Novobiocin resistant

A

Staphylococcus saprophyticus

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3
Q 
Gram positive cocci in chains
Catalase negative 
Alpha hemolytic 
Bile-optochin-sensitive
Encapsulated
A

Streptococcus pneumoniae

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4
Q 
Gram positive cocci in chains
Catalase negative 
Alpha hemolytic 
Bile-optochin-resistant
No capsule
A

Viridans streptococci

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5
Q

Gram positive cocci in chains
Catalase negative
Beta hemolytic
Bacitracin sensitive

A

Streptococcus pyogenes

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6
Q

Gram positive cocci in chains
Catalase negative
Beta hemolytic
Bacitracin resistant

A

Streptococcus agalactiae

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7
Q

Gram positive cocci in chains
Catalase negative
Gamma hemolytic

A

Group D streptococci

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8
Q

Encapsulated bacteria

A 
Streptococcus pneumoniae 
Klebsiella pneumoniae
Haemophilus influenzae
Pseudomonas aeruginosa 
Neisseria meningitidis
Salmonella typhi
Group B streptococci
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9
Q 
Spore-forming gram positive rods
Aerobic, non-motile
Box-car shaped
Poly-D-glutamate
Medusa head morphology
A

Bacillus anthracis

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10
Q

Spore-forming gram positive rods

Aerobic, mobile, reheated fried rice

A

Bacillus cereus

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11
Q

Spore-forming gram positive rods
Anaerobic, tennis-racket-like
Spastic paralysis

A

Clostridium tetani

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12
Q

Spore-forming gram positive rods
Anaerobic, bulging cans
Flaccid paralysis

A

Clostridium botulinum

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13
Q

Spore-forming gram positive rods
Anaerobic, lecithinase
Gas-forming
Double hemolysis

A

Clostridium perfringens

egg yolk agar

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14
Q

Spore-forming gram positive rods
Anaerobic
Pseudomembranes

A

Clostridium difficile

sx: Antibiotic associated diarrhea

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15
Q 
Non-spore-forming gram positive rods
Aerobic, non-motile
Curved
Chinese characters 
Pseudomembranes
A

Corynebacterium diphtheriae

black colonies on tellurite agar

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16
Q

Non-spore-forming gram positive rods
Aerobic, curved
Tumbling motility

A

Listeria monocytogenes

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17
Q

Spore-forming gram positive rods
Motile
Heat stable staphylococcal-like enterotoxin

A

Emetic form of Bacillus cereus
(Implicated food: rice
Incubation period:

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18
Q

Spore-forming gram positive rods
Aerobic, motile
Heat-labile cholera-like enterotoxin

A 
Diarrheal form of Bacillus cereus
(Implicated food: meat and vegetables
Incubation period: >6 hours, ~9 hours 
Sx: diarrhea
Duration: 20-36 hours 
Enterotoxin: heat labile)
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19
Q

Triad of Botulism

A
  1. Symmetric descending Flaccid paralysis (with prominent bulbar involvement)
  2. Absence of fever
  3. Intact sensorium
20
Q

Pseudomembranous pharyngitis

A

Diphtheria

21
Q

Pseudomembranous esophagitis

A

Candidiasis

22
Q

Pseudomembranous colitis

A

C. difficile

23
Q

Gas gangrene

A

Clostridium perfringes

24
Q

Beta-prophage-encoded toxins

A 
ShigA-like toxin (EHEC)
Botulinum toxin
Cholera toxin
Diphtheria toxin
Erythrogenic toxin (S. pyogenes)
25
Q

Gram negative diplococci
Encapsulated
Ferments Maltose and glucose

A

Neisseria meningitidis

26
Q

Gram negative diplococci
Insignificant capsule
Ferments glucose only

A

Neisseria gonorrhea

27
Q

HACEK Organisms

A 
Haemophilus aphrophilus 
Actinobacillus actinomycetemcomitans
Cardiobacterium hominis 
Eikenella corrodens 
Kingella kingae
28
Q

Gram negative rods
Polyribitol phosphate capsule
Enriched chocolate agar

A

Haemophilus influenzae type B

29
Q

Gram negative rods

Whooping cough

A

Bordetella Pertussis

Bordet-Gengou agar

30
Q

Gram negative rods
Air conditioning
Poorly gram staining

A 
Legionella pneumophila 
(silver stain, charcoal yeast agar)
31
Q

Haemophilus influenzae causes:

A

Epiglottitis
Meningitis
Otitis media
Pneumonia

32
Q

Facilitating intracellular bacteria

A 
Salmonella
Brucella 
Mycobacterium 
Listeria
Francisella 
Legionella 
Yersinia
33
Q

Atypical Pneumonia causative organism

A
  1. Mycoplasma pneumoniae
  2. Legionella pneumoniae
  3. Chlamydia pneumoniae
34
Q

Gram negative rods
Lactose fermenter
Green sheen on EMB

A

Escherichia coli

35
Q

Gram negative rods
Lactose fermenter
Urease positive ESBL

A

Klebsiella pneumoniae

36
Q

Gram negative rods
Comma-shaped, motile
Oxidase positive
Shooting star motility on TSBS

A

Vibrio cholerae

37
Q

Gram negative rods
Comma-shaped, microaerophilic
Skirrow’s agar

A

Campylobacter jejuni

38
Q

Gram negative rods
Comma-shaped
Urease positive
Skirrow’s agar

A

Heliobacter pylori

39
Q

Non-lactose, fermenting, gram-negative rods
Motile
Oxidase Negative
H2S producer

A

Salmonella spp.

40
Q

Non-lactose, fermenting, gram-negative rods
Non-motile Oxidase
Does NOT produce H2S

A

Shigella spp.

41
Q 
Non-lactose, fermenting, gram-negative rods
Oxidase Negative 
H2S producer
Urease +
Swarming motility
A

Proteus mirabilis

42
Q

Non-lactose, fermenting, gram-negative rods
Oxidase positive
H2S non producer
Obligate aerobe

A

Pseudomonas aeruginosa

43
Q

Lactose fermenters

A

Citrobacter
Klebsiella
E. Coli
Enterobacter

(grow in McConkey agar)

44
Q

Causes of neonatal Meningitis

A

Group B streptococcus (S. Agalactiae)
E. coli
L. monocytogenes

45
Q

Gram positive cocci in clusters
Catalase positive
Coagulase positive

A

Staphylococcus aureus

46
Q

Positive PYR test

A

Streptococcus pyogenes

Group D streptococcus

Microbiology (3 decks)

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