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PARASITOLOGY > protozoans > Flashcards

protozoans Flashcards

1
Q

most invasive of the parasites in the Entamoeba family

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

Escherichia histolytica

- most invasive

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2
Q

entamoeba that is large race, pathogenic, hematophagus and tissue invading

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A 
Entamoeba histolytica (magma form)
  - large race, pathogenic, hematophagus and tissue invading
Entamoeba hartmanni (minuta form)
   -  small race and non pathogenic
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3
Q

which of the following protozoans ha a cigar shaped or sausage shape chromatoidal bar

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

Entamoeba histolytica
- ciagr shaped
or
- sausage shaped chromatoidal bars

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4
Q

which of the following entamoeba has a Directional motility

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

Entamoeba histolytica
- DIRECTIONAL MOVEMENT OR MOTILITY

SLUGGISH MOTILITY

  • E. hartmanni
  • E. polecki
  • E. coli
  • E. nana
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5
Q

causative agent of Amebiasis in humans

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

entamoeba histolytica

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6
Q

what test can differentiate E. histolytica from E. dispar

a. permanent stain
b. culture
c. PCR

A

PCR can differentiate E. histolytica from E. dispar

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7
Q

what is the appearance of the cytoplasm of e. dispar

a. basket
b. feathery
c. ground glass

A

ground glass cytoplasm together with E. histolytica

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8
Q

______ can cause 2nd amoebic meningococcemia

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

E. histolytica can cause 2nd amoebic meningococcemia

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9
Q

morphologically similar but genetically different from E. histolytica

a. E. gingivalis
b. E. hartmanni
c. E. coli
d. E. dispar

A

e. dispar

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10
Q

entamoeba that is small, ninhematophagous and have a sluggish motility

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

E. hartmanni

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11
Q

dirty looking endoplasm

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

entamoeba coli

1-8 nuclei
SPLINTER LIKE ENDS or
BROOMSTICK APPEARANCE

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12
Q

Largest entamoeba

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. dispar

A

entamoeba coli

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13
Q

how many nuclei have Entamoeba coli

a. 1-4
b. 1-8
c. 2

A

1-8 nuclei

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14
Q

parasite of monkeys and pigs

a. E. polecki
b. E. hartmanni
c. E. coli
d. E. dispar

A

entamoeba polecki

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15
Q

parasite that inhibit the oral cavity

a. E. histolytica
b. E. hartmanni
c. E. coli
d. E. gingivalis

A

entamoeba gingivalis

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16
Q

which of the following parasites ingests WBC, EC and BACTERIA

a. entamoeba histolytica
b. entamoeba dispar
c. entamoeba gingivalis
d. iodamoeba butschii

A

entamoeba gingivalis

17
Q

which of the following entamoeba has vigorous movement

a. entamoeba polecki
b. entamoeba dispar
c. entamoeba gingivalis
d. iodamoeba butschii

A

entamoeba gingivalis

18
Q

which of the follwoing entamoeba has a undirectional or progeressive motility

a. entamoeba polecki
b. entamoeba dispar
c. entamoeba gingivalis
d. iodamoeba butschii

A

entamoeba polecki

19
Q

which of the following parasite ha large irregular karyosome

a. entamoeba polecki
b. endolimax nana
c. entamoeba gingivalis
d. iodamoeba butschii

A

endolimax nana

  • large irregular karyosome
  • smalles intestinal potozoa
  • may mimic Dientamoeba fragilis and e. hartmanni
20
Q

smallest intestinal protozoa

a. entamoeba hartmanni
b. endolimax nana
c. entamoeba gingivalis
d. iodamoeba butschii

A

endolimax nana

21
Q

this parasite is surrounded by achromatic granules

a. entamoeba polecki
b. endolimax nana
c. entamoeba gingivalis
d. iodamoeba butschii

A

iodamoeba butschii

22
Q

this parasite has a large glycogen vacuole

a. entamoeba polecki
b. endolimax nana
c. entamoeba gingivalis
d. iodamoeba butschii

A

iodamoeba butschii

23
Q

which of this parasite has a nucleus : basket

a. entamoeba polecki
b. endolimax nana
c. entamoeba gingivalis
d. iodamoeba butschii

A

iodamoeba butschii

24
Q

this parasite infects the colon. and the transmission may occur by way of ova of pinworm

a. entamoeba polecki
b. dientamoeba fragilis
c. entamoeba gingivalis
d. iodamoeba butschii

A

dientamoeba fragillis

  • no cystic stage
  • 1-2 rosette shaped nuclei
  • amoeboid pathogen that infects the colon
25
Q

best technique to identify the dientamoeba fragilis

a. permanent stain
b. biopsy
c. gram stain

A

permanent stain

26
Q

this ameboid like protozoan that inhibits the large bowel

a. balstocystis hominis
b. dientamoeba fragilis
c. entamoeba gingivalis
d. iodamoeba butschii

A

blastocystis hominis

27
Q

culture for blastocystis hominis

a. boeck and drbohlav’s
b. nelson and jones media
c. both
d. nota

A

blastocystis hominis

  • inhibits large bpwel
  • lacks of cell wall
  • central body form
  • culture : BOECK AN DDRBOHLAV OR NELSON AND JONES MEDIA
28
Q

which of the following free living amoebae is isolated from contact lenses cleaning solution and swimming pool and also in csf

a. acanthamoeba
b. balamuthia mandriallis
c. naegleria fowleri

A

acanthamoeba

  • sluugish spipnelike pseudopodia
  • polydirectional motility
  • isolated form contact lens solution , swimming pools and csf
29
Q

which of the following free living amoebae has a causative agent of granulomatous amoebic meningoencephalitis

a. acanthamoeba
b. balamuthia mandrialis
c. naegleria fowleri

A

acantamoeba

30
Q

which of the following free living amoebae has a culture : non nutrient agar plate seeded with lawn of heat killed or living escherichia coli

a. acanthamoeba
b. balamuthia mandrialis
c. naegleria fowleri

A

acantamoeba

  • culture: PGYC
  • causative agent : granulomatous amoebic meningoencephalitis
  • culture : non nutrient agar plate seeded with lawn of heat killed or living escherichia coli
31
Q

which of the following free living amoebae has a LEPTOMYXID AMOEBA

a. acanthamoeba
b. balamuthia madrialis
c. naegleria fowleri

A

balamuthia mandrialis

  • leptomyxid amoeba ; also cause GAE
  • similar or acanamoeba
32
Q

causative agent of PRIMARY AMOEBIC MENINGOENCEPHALITIS

A. acanthamoeba

b. balamuthia mandrialis
c. naegleria fowleri

A

naegleria fowleri

33
Q

what is the mode of transmission of naegleri fowleri

a. hand to mouth
b. from ova of pinworm
c. olfactory neuroepithelium

A

olfactory neuroepithelium

34
Q

under phase contrast microscopy whic parasite has a lobose monopseudopodium

a. acanthamoeba
b. balamuthia mandrialis
c. nnaegleria fowleri

A

naegleria fowleri at phase microscopy has a LOBOSE MONOPSEUDOPOSIUM

  • VERY PROMINENT NUCLEUS
  • CENTRALLY LOCATED NUCLEOLUS
35
Q

which of the following is the best technique to identify Dientamoeba fragilis in stool?

a. formalin concentrate
b. Trichome stained smear
c. modified acid fast stained smear
d. giemsa staine

A

b. trichome stained smear

because there is no known cyst form, the best tecbique tio recover and identify D. fragilis troph would be trichome staine smear

harr pg. 464

PARASITOLOGY (12 decks)

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