MCQs in Parasitology
1. Protozoa
a. are all unicellular organisms.
b. have both macronucleus and micronucleus in all species.
c. have contractile vacuoles in all species.
d. form cysts in faeces to overcome the changes of the external environment.
2. Humans are infected by eating improperly cooked meat containing
a. Toxocara (roundworm)
b. Taenia (tapeworm)
c. Clonorchis (fluke)
d. Entamoeba (protozoan)
e. Paragonimus (fluke)
3. Which of the statement (s) is / are correct?
a. Naegleria and Acanthamoeba are free-living amoeba.
b. Toxoplasma undergoes schizogenic multiplication in the gut epithelium of man.
c. Cestodes possess an intestinal tract.
d. Chagas’ disease is transmitted by Tricetoma bug.
4. Trematodes
a. require snail as the intermediate host.
b. have operculated eggs for all species.
c. always produce fork-tailed cercaria in their life-cycle.
d. possess parencyhmal cells in the body cavity.
5. Human infection can occur if
a. microfilariae are infected into the blood.
b. hookworm eggs are swallowed.
c. merozoites of malaria are inoculated into blood by blood transfusion.
d. oocysts of Toxoplasma are ingested.
6. S. japonicum in man can cause
a. periportal fibrosis
b. splenomegaly
c. hematuria
d. cancer of the bladder
e. lymphadenopathy
7. Acanthamoeba / Naegleria
a. acquired by drinking contaminated water.
b. infected person swimming in fresh water ponds / pools.
c. isolated from CSF of person with acute meningoencephalitis.
d. flagellate stage in life cycle.
e. flagellate stage in life cycle.
,8. Dogs act as reservoir hosts for
a. S. japonicum
b. Echinococcus granulosus
c. Toxocara caris
d. Clonorchis sinensis
e. Dipyllidum canium
9. Kidneys are involved in
a. W. brancrofti
b. P. falciparum
c. S. hematobium
d. Trichomonas hominis
e. Cryptosporidium
10. Malaria
a. Thick blood films are very useful for specific detection.
b. Giemsa is an alcohol stain.
c. Blackwater fever is a condition in which hematuria occurs.
d. Hypnozoite is responsible for the relapses in P. vivo infection.
e. Sporozoites are responsible for the initial bout of fever.
11. Larval stages of the following patients may cause disease in humans
a. Tanemia saginata
b. Trichuris trichuria
c. Echinococcus granulosus
d. Toxocara canis
e. Enterobious vernicularis
12. Protozoa
a. trophozoite always have a single nucleus.
b. conjugation leads to increase in numbers.
c. cilia are shorter than flagella.
d. largest protozoan infecting man is Balantidium coli.
e. Amoeba has a cytostoma.
13. Hookform infection:
a. dermatitis may occur at site of parasite entry.
b. physical growth of children may be retarded.
c. causes mainly macrocytic anemia.
d. infective stage is found in fresh stool.
e. eggs of each main species cannot be differentiated by their shape.
14. Filariasis
a. subperiodic Brugia malayi has a large animal reservoir.
b. microfilaria never give rise to any disease.
c. adults are located in the portal circulation.
d. male worm is larger than the female.
e. microfilaria of W. bancrofti has a sheath.
, 15. Lymph gland enlargement may occur in
a. visceral larval migrans
b. toxoplasmosis
c. amoebiasis
d. giardiasis
e. filariasis
16. Diagnostic techniques
a. Giardiasis can be detected by duodenal aspiration.
b. Thin blood smear is more suitable than thick blood smear for the detection of filariasis.
c. Kato thick smear is not suitable for the detection of protozoa.
d. Hepatic amoebiasis is always detected by finding E. histolytica in the faeces.
e. Knott’s method is used in detection of enterobiasis for microfilaria.
17. Ascaris lumbricoides
a. infection occurs most commonly among pre-school children.
b. main symptoms are severe dysentery and vomiting.
c. ectopic infection may result in biliary tract obstruction.
d. infection occurs by penetration of skin by the infectious larva.
e. adults are usually located in the caecum.
18. Trichuris
a. infection is controlled by wearing shoes.
b. may cause dysentery.
c. worm is located in the small intestine.
d. worm is completely buried under the mucosa membrane.
e. eggs are not infective when freshly passed.
19. Plasmodium vivax
a. cause cerebral malaria.
b. cytoplasm of infected red blood cell contain Schziffner’s dots.
c. produces crescent-shaped gametocytes.
d. causes benign tertian malaria.
20. Plasmodium falciparum
a. schizonts can generally be detected in peripheral blood.
b. hypnozoite is responsible for recrudescence.
c. G6PD deficiency trait is believed to confer some protection against infection.
d. chloroquine resistant strains occur in Southeast Asia.
e. multiple invasion of trophozoite in frequently seen in infected red blood cells.
21. Malaria
a. pre-red blood cell development produces symptoms.
b. 4-aminoquinolines act against the pre-red blood cell stage of human plasmodium.
c. Person may remain afebrile in spite of trophozoites in blood.
1. Protozoa
a. are all unicellular organisms.
b. have both macronucleus and micronucleus in all species.
c. have contractile vacuoles in all species.
d. form cysts in faeces to overcome the changes of the external environment.
2. Humans are infected by eating improperly cooked meat containing
a. Toxocara (roundworm)
b. Taenia (tapeworm)
c. Clonorchis (fluke)
d. Entamoeba (protozoan)
e. Paragonimus (fluke)
3. Which of the statement (s) is / are correct?
a. Naegleria and Acanthamoeba are free-living amoeba.
b. Toxoplasma undergoes schizogenic multiplication in the gut epithelium of man.
c. Cestodes possess an intestinal tract.
d. Chagas’ disease is transmitted by Tricetoma bug.
4. Trematodes
a. require snail as the intermediate host.
b. have operculated eggs for all species.
c. always produce fork-tailed cercaria in their life-cycle.
d. possess parencyhmal cells in the body cavity.
5. Human infection can occur if
a. microfilariae are infected into the blood.
b. hookworm eggs are swallowed.
c. merozoites of malaria are inoculated into blood by blood transfusion.
d. oocysts of Toxoplasma are ingested.
6. S. japonicum in man can cause
a. periportal fibrosis
b. splenomegaly
c. hematuria
d. cancer of the bladder
e. lymphadenopathy
7. Acanthamoeba / Naegleria
a. acquired by drinking contaminated water.
b. infected person swimming in fresh water ponds / pools.
c. isolated from CSF of person with acute meningoencephalitis.
d. flagellate stage in life cycle.
e. flagellate stage in life cycle.
,8. Dogs act as reservoir hosts for
a. S. japonicum
b. Echinococcus granulosus
c. Toxocara caris
d. Clonorchis sinensis
e. Dipyllidum canium
9. Kidneys are involved in
a. W. brancrofti
b. P. falciparum
c. S. hematobium
d. Trichomonas hominis
e. Cryptosporidium
10. Malaria
a. Thick blood films are very useful for specific detection.
b. Giemsa is an alcohol stain.
c. Blackwater fever is a condition in which hematuria occurs.
d. Hypnozoite is responsible for the relapses in P. vivo infection.
e. Sporozoites are responsible for the initial bout of fever.
11. Larval stages of the following patients may cause disease in humans
a. Tanemia saginata
b. Trichuris trichuria
c. Echinococcus granulosus
d. Toxocara canis
e. Enterobious vernicularis
12. Protozoa
a. trophozoite always have a single nucleus.
b. conjugation leads to increase in numbers.
c. cilia are shorter than flagella.
d. largest protozoan infecting man is Balantidium coli.
e. Amoeba has a cytostoma.
13. Hookform infection:
a. dermatitis may occur at site of parasite entry.
b. physical growth of children may be retarded.
c. causes mainly macrocytic anemia.
d. infective stage is found in fresh stool.
e. eggs of each main species cannot be differentiated by their shape.
14. Filariasis
a. subperiodic Brugia malayi has a large animal reservoir.
b. microfilaria never give rise to any disease.
c. adults are located in the portal circulation.
d. male worm is larger than the female.
e. microfilaria of W. bancrofti has a sheath.
, 15. Lymph gland enlargement may occur in
a. visceral larval migrans
b. toxoplasmosis
c. amoebiasis
d. giardiasis
e. filariasis
16. Diagnostic techniques
a. Giardiasis can be detected by duodenal aspiration.
b. Thin blood smear is more suitable than thick blood smear for the detection of filariasis.
c. Kato thick smear is not suitable for the detection of protozoa.
d. Hepatic amoebiasis is always detected by finding E. histolytica in the faeces.
e. Knott’s method is used in detection of enterobiasis for microfilaria.
17. Ascaris lumbricoides
a. infection occurs most commonly among pre-school children.
b. main symptoms are severe dysentery and vomiting.
c. ectopic infection may result in biliary tract obstruction.
d. infection occurs by penetration of skin by the infectious larva.
e. adults are usually located in the caecum.
18. Trichuris
a. infection is controlled by wearing shoes.
b. may cause dysentery.
c. worm is located in the small intestine.
d. worm is completely buried under the mucosa membrane.
e. eggs are not infective when freshly passed.
19. Plasmodium vivax
a. cause cerebral malaria.
b. cytoplasm of infected red blood cell contain Schziffner’s dots.
c. produces crescent-shaped gametocytes.
d. causes benign tertian malaria.
20. Plasmodium falciparum
a. schizonts can generally be detected in peripheral blood.
b. hypnozoite is responsible for recrudescence.
c. G6PD deficiency trait is believed to confer some protection against infection.
d. chloroquine resistant strains occur in Southeast Asia.
e. multiple invasion of trophozoite in frequently seen in infected red blood cells.
21. Malaria
a. pre-red blood cell development produces symptoms.
b. 4-aminoquinolines act against the pre-red blood cell stage of human plasmodium.
c. Person may remain afebrile in spite of trophozoites in blood.
