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bacteriology.. > gram positive BACILLI 2 > Flashcards

gram positive BACILLI 2 Flashcards

1
Q

rapid urease producer corynebacterium spp

a. c. diptheria
b. c. urealyticum
c. pseudodiptheriticum
d. c. jeikeium

A

corynebacterium urealyticum

RAPID UREASE PRODUCER

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2
Q

it is preferred medium for the isolation and identification of corynebacterium

a. cystine tellurite blood agar
b. tinsdale agar
c. loefflers’s slant agar
d. christensen urea test

A

ctba / cyteine tellurite agar

  • isolation and identification of corynebacterium
  • modification of tindalse agar
  • (+) black OR brown
  • (+) c. diptheria, C. ulcerans and C. pseudotuberculosis
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3
Q

this test is useful for observing the microscopic morphology and metachromatic granules of C. diptheria

a. cystine tellurite blood agar
b. tinsdale agar
c. loefflers’s slant agar
d. christensen urea test

A

loeffler’s slant agar / pai’s slant

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4
Q

it is a skin test that is used to determine the susceptibilty of a person to diptheria

a. forshay’s test
b. schick test
c. both
d. nota

A

schick test
- susceptibility to diptheria

forshay’s test
- is tularemia skin test ( Francisella tularemia)

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5
Q

motility:
semi solid: umbrella shaped pattern

a. corynebacterium amycolatum
b. corynebacterium diptheriae
c. listeria monocytogenes
d. arthrobacter spp

A

listeria monocytogenes

  • wet wount / hanging drop method : TUMBLING MOTILITY at room temperature
  • SIM test : UMBRELLA SHAPED or INVERTED CHRISTMASS TREE at 25 degree celsius
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6
Q

this spp of gram positive bacilli causes a miscarriage or stillbirth in humans

a. corynebacterium amycolatum
b. corynebacterium diptheriae
c. listeria monocytogenes
d. arthrobacter spp

A

listeria monocytogenes

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7
Q

which of the following cells are the most significant host defense against listeria monocytogenes infection

a. t lymphocytes
b. b lymphocytes
c. monocyte
d. macrophage

A

macrophages and T lymphocytes

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8
Q

which of the following spp is a veterinary infection and an occupational hazard for those handling meat , poultry, fish and rabbitts

a. corynebacterium diptheria
b. listeria monocytogenes
c. arthrobacter spp
d. erysipelothrix rhusiopathiae

A

Erysipelothrix rhusiopathiae

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9
Q

which of the following spp of gram positive bacilli is positive in h2s

a. corynebacterium diptheria
b. listeria monocytogenes
c. arthrobacter spp
d. erysipelothrix rhusiopathiae

A

erysipelothrix rhusiopathiae

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10
Q

this spp has a human infection : BUTCHERS CUT

a. corynebacterium diptheria
b. listeria monocytogenes
c. arthrobacter spp
d. erysipelothrix rhusiopathiae

A

ERYSIPELOTHRIX RHUSIOPATHIAE

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11
Q

what spp has a test tube brush or pipe cleaner appearance

a. corynebacterium diptheria
b. listeria monocytogenes
c. arthrobacter spp
d. erysipelothrix rhusiopathiae

A

erysipelothrix rhusiopathiae

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12
Q

Lactobacillus produce large quantities of _________

A

lactic acid

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13
Q

what spp of lactobacillus is in female genital

a. boas oppler bacillus
b. duderlein’s bacillus
c. both

A

female genital
- DUDErlein’s bacillus

GIT
- boas oppler bacillus

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14
Q

multiple colonial morphologies of lactobacillus may have alpha hemolytic colonies resembling ?

a. staphylococcus
b. streptococcus
c. enterobacteriaceae

A

Sterptococcus

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15
Q

what gram positive bacilli can be found in the environment in water and sewage

a. erysipelothrix rhusiopathiae
b. lactobacillus
c. liseteria monocytogenes
d. aerotolerant actnomyces

A

Lactobacillus
- can be found in Environment in water and sewage

erysipelothrix rhusiopathiae
- veterinary pathogen

listeria monocytogenes

  • animal pathogen
  • common foods
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16
Q

causative agent of lumpy jaw

a. actinomyces istraelii
b. actinomadura
c, gardnerella vaginalis
d. nocardia brasilliensis

A

Actinomyces istraelii

  • most often isolated
  • molar tooth colonies
  • presence of sulfur granuels
  • causative of LUMPY JAW and involved in abscesseses and draining sinuses
17
Q

which of the following is non acid fast aerobic actinomycetes

a. corynebacterium
b. dietzia
c. tsukamurella
d. streptomyces

A

Absent / no mycolic acid / non acid fast
(SADNO)

S  - streptomyces
A  -  actinomadura
D  - dermatophilus
N  -  nocardiopsis
O  - Oerskovia

ans: d

18
Q

which of the following is partially acid fast actinomycetes

a. corynebacterium
b. dietzia
c. tsukamurella
d. gordonia

A

partially acid fast
( DTC GRND)

D- dietzia
T - tsukamurella
C - Corynebacterium
G - Gordonia
R -  rhodococcus
N - nocardia
D - dietza
19
Q

nocardiopsis

a. partially acid fast
b. non acid fast

A

non acid fast

Absent / no mycolic acid / non acid fast
(SADNO)

S  - streptomyces
A  -  actinomadura
D  - dermatophilus
N  -  nocardiopsis
O  - Oerskovia
20
Q

which of the following spp is CASEIN HYDROLYSIS, TYROSINE AND XANTHIN ENEGATIVE

a. nocardia asteroides
b. nocardia brasiliensis
c, nocardia caviae

A

nocardia asteroides

  • most frequently found in humans
  • Casein hydrolysis , tyrosine and xanthine NEGATIVE

nocardia brasiliensis
- skin

21
Q

gram positive bacilli that develop thin, branching filaments, which may show beading

a. corynebacterium
b. actinomyces
c. listeria
d. crucella`

A

Actinomyces
- branching,beading

corynebacterium
- curved

22
Q

pleomorphic, gram variable to gram positiive , non motile bacillus

a. nocardia
b. gardnerella vaginalis
c. aerotolerant actinomycetes

A

Gardnerella vaginalis

- gram VARIABLE to GRAM POSITIVE

23
Q

Which of the following spp is associated with BACTERIAL VAGINALIS

a. nocardia
b. gardnerella vaginalis
c. aerotolerant actinomycetes

A

Gardnerella vaginalis

  • bacterial vaginalis
  • malodorous
  • grayish vaginal discharge
  • pathogenic cell : squamous epithelial cell
  • non cultural test : WHIFF OR SNIFFTEST
24
Q

what is the pathogenic cell associate with gardnerella vaginalis

a. clue cell
b. glitter cell
c. swollen cell

A

Gardnerella vaginalis

  • bacterial vaginalis
  • malodorous
  • grayish vaginal discharge
  • pathogenic cell : CLUE CELL ->squamous epithelial cell
  • non cultural test : WHIFF OR SNIFFTEST
25
Q

what is the non cultural test for G. vaginalis

a. cap
b. bap
c. sniff test
d. casein hydrolysis

A

non cultural test

  • sniff or whiff test
  • reagent : 10 % KOH
  • (+) FISHY AMINE ODOR
26
Q

what is the best medium for isolation of G. vaginalis

a. tcsb
b. mha
d. HBT
c. thio

A

human blood bilayer (HBT)

27
Q

what is the nugent scoring system for G.vaginalis that indicates bacterial vaginosis

a. <7
b .>7
c. <9
d. >9

A

> 7 indicates B.V

28
Q

which of the following spp of aerobic actinomyces is BRANCHING ONLY

a. nocardia
b. streptomyces
c. dermatophilus
d. actinomadura

A

extensive in tap water
- nocardia and streptomyces

with branching / aeriel hypae

  • nocardia
  • streptomyces
  • nocardiopsis

branching only
- Dermatophilus

varianle / sparse only
- actinomadura

29
Q

which of the ff has a similar morphology with Nocardia but with a MOLAR TOOTH appearance on routine agar

a. arcanobacterium
b. kuthria
c. streptomyces
d. actinomadura

A

Actinomadura

  • the microscopic appearance and colony morphology is similar to nocardia
  • culture agar : routine agar : molar tooth appearance

kuthria

  • bap : large medusa head appearance
  • nuutrient agar : rhizoid growth
30
Q

which of the ff is an immunodiffusion tests that detects the toxin production of C. diptheriae

a. ascoli test
b. anton test
c. shicks test
d. elek test

A

c. diptheriae
vivo : roemer’s test / animal inoculation tets
vitro : ELEKS TEST / immunodiffusion

bacillus anthracis
- ascoli test

listeria mono

  • mc bride
  • ocular ANTON TEST

bacteriology.. (17 decks)

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