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bacteriology.. > gram positive BACILLI > Flashcards

gram positive BACILLI Flashcards

1
Q

BIOLOGIC INDICATOR OF autoclave

a. bacillus anthracis
b. bacillus cereus
c. bacillus stearothermophilus

A

bacillus stearothermophilus

- biologic indicator og autoclave

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2
Q

fried rice bacillus

a. bacillus anthracis
b. bacillus cereus
c. bacillus stearothermophilus

A

bacillus cereus
- fried rice bacillus

streptobacillus minus
- fried egg appearance

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3
Q

medusa head colonies

a. bacillus anthracis
b. bacillus cereus
c. bacillus stearothermophilus

A

bacillus anthracis

  • medusa head colonies
  • ground glass appearance
  • gram positive bacilli arranged in BAMBOO ROD POLE APPEARANCE
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4
Q

what spp of gram positive bacilli is food poisoning

a. bacillus anthracis
b. bacillus cereus
c. corynebacterium diptheriae
d. listeria monocytogenes

A

bacillus cereus

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5
Q

which of the four types of infection in bacillus anthracis is WOOLSORTER’S DIEASE

a. cutaneous
b. pulmonary
c. gastrointestinal
d. oropharyngeal

A

cutaneous - most common ; least severe

pulmonary (inhalation) - WOOLSORTER’S DISEASE

gastrointestinal - least common ; most severe

oropharygeal

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6
Q

gram positive bacillus arranged in bamboo rod pole appearance

a. bacillus anthracis
b. bacillus cerus
c. corynebacterium hominis
d. corynebacterium diptheriae

A

bacillus antharacis

gram positive bacili arranged as BAMBOO ROD POLE APPEARANCE

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7
Q

what is the special media to used in bacillus antharacis

a. tcbs
b. plet
c. bap
d. alkaline peptone water

A

PLET - polymyxin lysozyme EDTA thallous acetate

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8
Q

which of the following bacteria is positive in CASEIN HYDROLYSIS

a. bacillus steathermophilus
b. bacillus cerus
c bacillus anthracis

A

bacillus anthracis

  • antharx
  • woolsorters disease
  • bamboo rod pole appearance
  • plet
  • ascolit test
  • produce acid from GLM
  • casein hyrolysis positive
  • medusa head / ground glass
  • string of pearls in mha
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9
Q

whihc of the following spp is agent of biologic welfare

a. bacillus steathermophilus
b. bacillus cerus
c bacillus anthracis
d. corynebacterium diptheriae

A

B. anthracis produces endospores that may be effectively used as an agent oF BIOLOGIC WELFARE

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10
Q

best specimen for testing bacillus cereus

a. stool
b. csf
d. food
e. blood

A

suspected food

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11
Q

which of the following spp has a frosted glass appearance on bap

a. bacillus steathermophilus
b. bacillus cerus
c bacillus anthracis

A

bacillus cereus

bap : colonies are large and feathery ; have a spreading growth ; have a frosted glass appearance ; and beta hemolytic

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12
Q

what type of food posing in bacillus cereus is associated with ingestion of contaminated meat, poultry and vegetables

a. emetic type
b. diarrheal type
c. both a and b
d. nota

A

diarheal type

  • associated with ingestion of contaminated meat, poultry and vegetables
  • heat Labile

emetic type

  • ingestion of improperly stored cooked rice
  • it is caused by B . CEREUS TYPE 1
  • HEAT STABLE
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13
Q

which of the following spp of bacillus is most commonly encountered in the laboratory

a. b. anthracis
b. b. cereus
c. b. subtilis
d. b. steathermophilus

A

b. subtilis
- hay bacillus
- most commonly encountered in the laboratory
- can tolerate 7% NaCl

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14
Q

whichof the ff spp ferments manitol, arabinose, and xylose

a. b. anthracis
b. b. cereus
c. b. subtilis
d. b. steathermophilus

A

bacillus subtilis
ferments max

b. anthracis
produces acid from GSM

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15
Q

it is used as a biologic indicator in STERILIZATION methods

a. b. pumilus
b. b. anthracis
c. b. subtilis
d. b. steathermophilus

A

bacillus pumilus
- STERILIZATION methods

b. steathermophilus
- autoclave

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16
Q

which of the ff spp of bacillus is colonies are large and MOIST, have a BLISTER LIKE APPEARANCE

a. b. pumilus
b. b. anthracis
c. b. subtilis
d. b. steathermophilus

A

B. PUMILUS

17
Q

which of the bacillus spp is insect pathogen

a. b. pumilus
b. b. thuringiensis
c. b. subtilis
d. b. steathermophilus

A

bacillus thuringiensis

  • it is insect pathogen
  • it produces PARASORAL CRYSTAL that can be utilized as pesticide
18
Q

which of the following test detects THERMOSTABLE ANTHRAX ANTIGENS

a. ascoli test
b. catalase test
c. oxidase test
d. direct fluorescent test

A

ascoli test

  • detects thermostable anthrax antigens
  • uses RABBIT ANTISERUM
19
Q

beaten egg white appearance when inoculating loop isused

a. b. pumilus
b. b. anthracis
c. b. subtilis
d. b. steathermophilus

A

bacillus anthracis

20
Q

which of the ff non spore former in the microsope has a slightly curved, gram positive rods with UNPARALLEL SIDES AND slighly wider ends that produces a CLUB LIKE SHAPED

a. corynebacterium
b. listeria
c. anthrobacter
d. nocardia

A

corynebacterium

21
Q

motility : BLINDINING / SLIDING / GLINDING

a. Campylobacter
b. Chromobacterium violacieum
c. Capnocytophaga

A

Campnocytophaga

  • normal flora of the DOGS
  • bacilli with TAPERED ENDS (FUSIFORM SHAPE)
  • MOTILITY : BLINIDNG / SLIDING / GLINDING
22
Q

which of the following types of biotypes of corynebacterium is largest , dark grey and have a daisy head appearance

a. gravis
b. mitis
c. intermidius
d. var. belfanti

A

Gravis - large , flat and dark gray colonies that have a daisy head appearance, beta hemolytic

Mitis - small , black and convex colonies that have a “ fried egg” appearance

Intermidius - very small, flat , dry and grayish black colonies, non-hemolytic

var. belfanti - non toxigenic , resemble mitis

23
Q

it is known as Kleb- Loeffler bacillus

a. corynebacterium diptheriae
b. bacillus cerus
c. listeria monocytogenes
d. corynebacterium jeikium

A

cornynebacterium diptheriae

it is known as the diptheria bacillus or KlebLoeffler bacillus

24
Q

microscopy : Chinese letters

a. corynebacterium diptheriae
b. bacillus cerus
c. listeria monocytogenes
d. corynebacterium jeikium

A

corynebacterium diptheria

25
Q

which of the following spp is resistant to many antibiotics and it is normal flora of human conjunctiva,skin and nasopharynx

a. corynebacterium diptheria
b. corynebacterium amycolatum
c. corynebacterium ulcerans
d. corynebacterium pseudotuberculosis

A

corynebacterium amycolatum

  • Resistant to many antibiotics
  • has been isolated in cases of Sepsis , Endocarditis and surgical wound infection
  • normal flora of human conjuctiva , skin and nasopharynx
26
Q

which of the following C. diptheriae like colonies produces diptheria like toxin and diptheria like infection in human and mastitis in cattles

a. corynebacterium ulcerans
b. corynebacterium pseudotuberculosis
c. corynebacterium jeikeium
d. corynebacterium minuffssimum

A

corynebacterium ulcerans

27
Q

which of the following organism produces a DERMONECROTIC TOXIN that cause death of various cell types

a. corynebacterium ulcerans
b. corynebacterium pseudotuberculosis
c. corynebacterium jeikeium
d. corynebacterium minuffssimum

A

corynebacterium pseudotb

28
Q

multidrug resistant organism that is associated with indwelling devices

a. corynebacterium ulcerans
b. corynebacterium pseudotuberculosis
c. corynebacterium jeikeium
d. corynebacterium minuffssimum

A

corynebacterium jeikeium

29
Q

this corynebacterium causes superficial puritic skin infection Emphysema

a. corynebacterium ulcerans
b. corynebacterium pseudotuberculosis
c. corynebacterium jeikeium
d. corynebacterium minuffssimum

A

corynebacterium minutissum

30
Q

what are the 2 test to differentiate C. diptheria from other corynebacterium

a. urease
b. nitrate
c. tinsdale medium
d. aota

A

urease and presence of halo in tinsdale medium

bacteriology.. (17 decks)

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