PARASITOLOGY

Contains 1-4 nuclei

a. entamoeba histolytica

b. entamoeba coli

a. entamoeba histolytica

Peripheral chromatin is fine and uniformly distributed

a. entamoeba histolytica

b. entamoeba coli

a. entamoeba histolytica

Karyosome is centrally located

a. entamoeba histolytica

b. entamoeba coli

a. entamoeba histolytica

Cytoplasm may contain intracellular RBC

a. entamoeba histolytica

b. entamoeba coli

a. entamoeba histolytica

Contains 1-8 nuclei

a. entamoeba histolytica

b. entamoeba coli

b. entamoeba coli

Finely granular cytoplasm with chromatoidal bars

a. entamoeba histolytica

b. entamoeba coli

a. entamoeba histolytica

With bacterial inclusions

a. entamoeba histolytica

b. entamoeba coli

b. entamoeba coli

Karyosome is eccentric and large

a. entamoeba histolytica

b. entamoeba coli

b. entamoeba coli

Coarse cytoplasm with thin chromatoid bars

a. entamoeba histolytica

b. entamoeba coli

b. entamoeba coli

Young cyst contains a large central glycogen mass

a. entamoeba histolytica

b. entamoeba coli

b. entamoeba coli

Motile by cilia

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

d. Balantidium coli

Cyst contain a single nucleus without peripheral chromatin

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

a. chilomastrix mesnili

Trophozoite is pear shaped and motile

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

a. chilomastrix mesnili

Trophozoites possess 4 flagella

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

c. giardia lambdia

No cyst stage

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

b. dientamoeba fragilis

Trophozoite with karyosome which is kidney-shaped and very large

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

d. Balantidium coli

Cyst with karyosome which is large and is centrally located

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

a. chilomastrix mesnili

Cyst with 4 nuclei with no peripheral chromatin

a. chilomastrix mesnili

b. dientamoeba fragilis

c. giardia lambdia

d. Balantidium coli

c. giardia lambdia

Oocyst contains two sporozoites enclosed in a thick cell wall

a. crytosporidium parvum

b. cyclospora cayetanensis

c. isospora belli

a. crytosporidium parvum

Oocysts will stain with modified kinyoun’s acid-fast

a. crytosporidium parvum

b. cyclospora cayetanensis

c. isospora belli

b. cyclospora cayetanensis

Humans are the definitive host and there are no known intermediate host

a. crytosporidium parvum

b. cyclospora cayetanensis

c. isospora belli

c. isospora belli

Associated with death among AIDS individuals due to dehydration

a. crytosporidium parvum

b. cyclospora cayetanensis

c. isospora belli

a. crytosporidium parvum

Multiple ring forms seen in single RBC

a. P. palcifarum

b. P. malariae

c. P. ovale

d. P. vivax

a. P. palcifarum

Trophozoites are compact

a. P. palcifarum

b. P. malariae

c. P. ovale

d. P. vivax

b. P. malariae

Infected RBCs with normal size and color

a. P. palcifarum

b. P. malariae

c. P. ovale

d. P. vivax

b. P. malariae

Crescent-shaped gametes

a. P. palcifarum

b. P. malariae

c. P. ovale

d. P. vivax

a. P. palcifarum

Infected RBCs enlarged and often oval shaped with fimbriated edges

a. P. palcifarum

b. P. malariae

c. P. ovale

d. P. vivax

c. P. ovale

Pear shaped trophozoite with undulating membrane

a. acanthamoeba

b. babesia microti

c. naegleria fowleri

d. trichomonas vaginalis

d. trichomonas vaginalis

Found in stagnant waters like swimming pools where water is warm

a. acanthamoeba

b. babesia microti

c. naegleria fowleri

d. trichomonas vaginalis

c. naegleria fowleri

Can be transmitted via ingestion of cat feces

Toxoplasma gondii

Ring form may appear like “maltese cross

a. acanthamoeba

b. babesia microti

c. naegleria fowleri

d. trichomonas vaginalis

b. babesia microti

Associated with amoebic keratitis of the cornea

a. acanthamoeba

b. babesia microti

c. naegleria fowleri

d. trichomonas vaginalis

a. acanthamoeba

Associated with Chagas disease

a. leishmania

b. T. brucei

c. T. cruzi

c. T. cruzi

Diagnosis in finding amastigote in the blood

a. leishmania

b. T. brucei

c. T. cruzi

a. leishmania

African trypanosomiasis

a. leishmania

b. T. brucei

c. T. cruzi

b. T. brucei

American trypanosomiasis

a. leishmania

b. T. brucei

c. T. cruzi

c. T. cruzi

Characterized by skin and mucous membrane ulcers

a. leishmania

b. T. brucei

c. T. cruzi

a. leishmania

First larval stage that emerges from the egg in fresh water

a. carcaria

b. metacercaria

c. miracidium

d. redia

e. sporocyst

c. miracidium

Intermediate larval stage occurring on the sporocyst

a. carcaria

b. metacercaria

c. miracidium

d. redia

e. sporocyst

d. redia

Final stage of development occurring in snails

a. carcaria

b. metacercaria

c. miracidium

d. redia

e. sporocyst

a. carcaria

Encysted form occurring in the second intermediate host

a. carcaria

b. metacercaria

c. miracidium

d. redia

e. sporocyst

b. metacercaria

Emerges from the miracidium

a. carcaria

b. metacercaria

c. miracidium

d. redia

e. sporocyst

e. sporocyst

Motile by means of a tail

a. carcaria

b. metacercaria

c. miracidium

d. redia

e. sporocyst

a. carcaria

First intermediate host

trematodes

a. crayfish

b. fish

c. snail

c. snail

Chinese or oriental liver ffluke

a. chlonorchis sinensis

b. fasciola hepatica

c. fasciolopsis buski

d. paragonimus westerman

a. chlonorchis sinensis

Liver fluke

a. chlonorchis sinensis

b. fasciola hepatica

c. fasciolopsis buski

d. paragonimus westermani

b. fasciola hepatica

Lung fluke

a. chlonorchis sinensis

b. fasciola hepatica

c. fasciolopsis buski

d. paragonimus westermani

d. paragonimus westermani

Intestinal fluke

a. chlonorchis sinensis

b. fasciola hepatica

c. fasciolopsis buski

d. paragonimus westerman

c. fasciolopsis buski

Make up the major portion of the tapeworm

a. proglottids

b. rostellum

c. scolex

d. strobila

a. proglottids

The anterior portion of a tapeworm

a. proglottids

b. rostellum

c. scolex

d. strobila

c. scolex

Diagnostic stage of tapeworm

a. egg

b. proglottids

c. both

c. both

Infective stage of tapeworm

a. egg

b. proglottids

c. both

a. egg

Diphyllobotrium latum

a. beef tapeworm

b. dwarf tapeworm

c. dog tapeworm

d. fish tapeworm

e. pork tapeworm

d. fish tapeworm

Echinococcus granulosus

a. beef tapeworm

b. dwarf tapeworm

c. dog tapeworm

d. fish tapeworm

e. pork tapeworm

c. dog tapeworm

Hymenolepis nana

a. beef tapeworm

b. dwarf tapeworm

c. dog tapeworm

d. fish tapeworm

e. pork tapeworm

b. dwarf tapeworm

Taenia saginata

a. beef tapeworm

b. dwarf tapeworm

c. dog tapeworm

d. fish tapeworm

e. pork tapeworm

a. beef tapeworm

Taenia solium

a. beef tapeworm

b. dwarf tapeworm

c. dog tapeworm

d. fish tapeworm

e. pork tapeworm

e. pork tapeworm

Cysticercus larvae is associated with

a. dyphyllobotriumlatum

b. hymenolepis

c. echinococcus

d. taenia

d. taenia

Pleurocercoid is associated with

a. dyphyllobotrium latum

b. hymenolepis

c. echinococcus

d. taenia

a. dyphyllobotrium latum

Cysticercoid is associated with

a. dyphyllobotrium latum

b. hymenolepis

c. echinococcus

d. taenia

b. hymenolepis

Hyadatid tapeworm

a. dyphyllobotrium latum

b. hymenolepis

c. echinococcus

d. taenia

c. echinococcus

Pinworm

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

b. Enterobius

Whipworm

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

d. Trichuris

Threadworm

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

e. Strongyloides

Giant intestinal roundworm

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

a. Ascaris

Hookworm

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

c. Necator & Ancylostoma

Associated with “scotch” tape swabbed

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

b. Enterobius

“football ova”

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

d. Trichuris

With bipolar plugs in ova

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

d. Trichuris

Rhabditiform larvae is with notched tail

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

e. Strongyloides

Buccal cavity has cutting plates

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

c. Necator & Ancylostoma

Gravid females migrate to the perianal region

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

b. Enterobius

Ova is oval with one side is flat resulting to a “lapsided D ova

a. Ascaris

b. Enterobius

c. Necator & Ancylostoma

d. Trichuris

e. Strongyloides

b. Enterobius

Transmission is through eating contaminated undercooked pork

a. Dracunculus medinensis

b. Trichusris trichura

c. Trichenella spiralis

c. Trichenella spiralis

Two nuclei are located in the tail

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

a. Brugia malayi

River blindness

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

d. Onchocerca volvulus

Transmission is through the bite of chrysops

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

b. Loaloa

Malayan filariasis

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

a. Brugia malayi

Transmission is through the bite of a blackfly simulium

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

d. Onchocerca volvulus

Bancroftian filariasis

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

c. Wuchereria bancrofti

Contains a row of nuclei that extends to the microfilarial tail

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

b. Loaloa

Affects conjunctival lining of the eye

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

b. Loaloa

Transmission through the bite of a deer fly

a. Brugia malayi

b. Loaloa

c. Wuchereria bancrofti

d. Onchocerca volvulus

b. Loaloa

A. Plasmodium falciparum

B. Plasmodium malariae

C. Plasmodium vivax

1. Single-ring trophozoites in immature RBC

2. Schizont with 6-12 merozoites

3. Schuffner's dots on reticulocytes

4. Schizont with 12-24 merozoites

A, B , C, C

Balantidium coli is a

A. Flagellate

B. Ciliate

C. Sporozoan

B. Ciliate

Arthropod vector for Leishmania spp.

A. Reduviid bug

B. Tsetse fly

C. Phlebotomus spp

C. Phlebotomus spp

Infective stage of Trypanosoma spp

A. Amastigote

B. promastigote

C. trypomastigote

C. trypomastigote

Infective stage for Leishmania spp.

A. Amastigote

B. Promastigote

C. Trypomastigote

B. Promastigote

Which of the following is not an oppurtunistic ammoebic pathogen of the CNS?

a. Acanthameba spp.

b. Negleria fowler

c. Blastocytes

c. Blastocytes

a. Iodamoeba butschii

b. edolimax nana

c. entamoeba coli

1. With an irregular, clumped karyosome with no peripheral chromatin

2. With large irregular karyosome with no peripheral chromatin

b, a,