protozoans

Question 1

most invasive of the parasites in the Entamoeba family

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

Answer 1

Escherichia histolytica

- most invasive

Question 2

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

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

Answer 2

Entamoeba histolytica (magma form)
  - large race, pathogenic, hematophagus and tissue invading

Entamoeba hartmanni (minuta form)
   -  small race and non pathogenic

Question 3

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

Answer 3

Entamoeba histolytica
- ciagr shaped
or
- sausage shaped chromatoidal bars

Question 4

which of the following entamoeba has a Directional motility

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

Answer 4

Entamoeba histolytica
- DIRECTIONAL MOVEMENT OR MOTILITY

SLUGGISH MOTILITY

• E. hartmanni
• E. polecki
• E. coli
• E. nana

Question 5

causative agent of Amebiasis in humans

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

Answer 5

entamoeba histolytica

Question 6

what test can differentiate E. histolytica from E. dispar

a. permanent stain
b. culture
c. PCR

Answer 6

PCR can differentiate E. histolytica from E. dispar

Question 7

what is the appearance of the cytoplasm of e. dispar

a. basket
b. feathery
c. ground glass

Answer 7

ground glass cytoplasm together with E. histolytica

Question 8

______ can cause 2nd amoebic meningococcemia

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

Answer 8

E. histolytica can cause 2nd amoebic meningococcemia

Question 9

morphologically similar but genetically different from E. histolytica

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

Answer 9

e. dispar

Question 10

entamoeba that is small, ninhematophagous and have a sluggish motility

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

Answer 10

E. hartmanni

Question 11

dirty looking endoplasm

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

Answer 11

entamoeba coli

1-8 nuclei
SPLINTER LIKE ENDS or
BROOMSTICK APPEARANCE

Question 12

Largest entamoeba

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

Answer 12

entamoeba coli

Question 13

how many nuclei have Entamoeba coli

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

Answer 13

1-8 nuclei

Question 14

parasite of monkeys and pigs

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

Answer 14

entamoeba polecki

Question 15

parasite that inhibit the oral cavity

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

Answer 15

entamoeba gingivalis

Question 16

which of the following parasites ingests WBC, EC and BACTERIA

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

Answer 16

entamoeba gingivalis

Question 17

which of the following entamoeba has vigorous movement

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

Answer 17

entamoeba gingivalis

Question 18

which of the follwoing entamoeba has a undirectional or progeressive motility

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

Answer 18

entamoeba polecki

Question 19

which of the following parasite ha large irregular karyosome

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

Answer 19

endolimax nana

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

Question 20

smallest intestinal protozoa

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

Answer 20

endolimax nana

Question 21

this parasite is surrounded by achromatic granules

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

Answer 21

iodamoeba butschii

Question 22

this parasite has a large glycogen vacuole

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

Answer 22

iodamoeba butschii

Question 23

which of this parasite has a nucleus : basket

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

Answer 23

iodamoeba butschii

Question 24

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

Answer 24

dientamoeba fragillis

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

Question 25

best technique to identify the dientamoeba fragilis a. permanent stain b. biopsy c. gram stain

Answer 25

permanent stain

Question 26

this ameboid like protozoan that inhibits the large bowel a. balstocystis hominis b. dientamoeba fragilis c. entamoeba gingivalis d. iodamoeba butschii

Answer 26

blastocystis hominis

Question 27

culture for blastocystis hominis a. boeck and drbohlav's b. nelson and jones media c. both d. nota

Answer 27

blastocystis hominis - inhibits large bpwel - lacks of cell wall - central body form - culture : BOECK AN DDRBOHLAV OR NELSON AND JONES MEDIA

Question 28

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

Answer 28

acanthamoeba - sluugish spipnelike pseudopodia - polydirectional motility - isolated form contact lens solution , swimming pools and csf

Question 29

which of the following free living amoebae has a causative agent of granulomatous amoebic meningoencephalitis a. acanthamoeba b. balamuthia mandrialis c. naegleria fowleri

Answer 29

acantamoeba

Question 30

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

Answer 30

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

Question 31

which of the following free living amoebae has a LEPTOMYXID AMOEBA a. acanthamoeba b. balamuthia madrialis c. naegleria fowleri

Answer 31

balamuthia mandrialis - leptomyxid amoeba ; also cause GAE - similar or acanamoeba

Question 32

causative agent of PRIMARY AMOEBIC MENINGOENCEPHALITIS A. acanthamoeba b. balamuthia mandrialis c. naegleria fowleri

Answer 32

naegleria fowleri

Question 33

what is the mode of transmission of naegleri fowleri a. hand to mouth b. from ova of pinworm c. olfactory neuroepithelium

Answer 33

olfactory neuroepithelium

Question 34

under phase contrast microscopy whic parasite has a lobose monopseudopodium a. acanthamoeba b. balamuthia mandrialis c. nnaegleria fowleri

Answer 34

naegleria fowleri at phase microscopy has a LOBOSE MONOPSEUDOPOSIUM - VERY PROMINENT NUCLEUS - CENTRALLY LOCATED NUCLEOLUS

Question 35

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

Answer 35

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