Parasitology — MCQs August 22, 2025 by u930973931_answers 50 Score: 0 Attempted: 0/50 Subscribe 1. The vector of malaria is: (A) Aedes mosquito (B) Anopheles mosquito (C) Culex mosquito (D) Sandfly 2. The infective stage of Plasmodium for humans is: (A) Sporozoite (B) Merozoite (C) Trophozoite (D) Gametocyte 3. Kala-azar is caused by: (A) Plasmodium falciparum (B) Leishmania donovani (C) Trypanosoma cruzi (D) Wuchereria bancrofti 4. Sleeping sickness is transmitted by: (A) Sandfly (B) Tsetse fly (C) Anopheles mosquito (D) Blackfly 5. Elephantiasis is caused by: (A) Loa loa (B) Wuchereria bancrofti (C) Onchocerca volvulus (D) Brugia malayi 6. The infective stage of Entamoeba histolytica is: (A) Cyst (B) Trophozoite (C) Schizont (D) Sporozoite 7. Which parasite causes amoebic dysentery? (A) Giardia lamblia (B) Entamoeba histolytica (C) Balantidium coli (D) Cryptosporidium 8. Giardia lamblia causes: (A) Malaria (B) Giardiasis (C) Filariasis (D) Leishmaniasis 9. The only ciliate parasite causing human disease is: (A) Giardia lamblia (B) Balantidium coli (C) Cryptosporidium parvum (D) Toxoplasma gondii 10. The intermediate host of Taenia solium is: (A) Pig (B) Cattle (C) Dog (D) Sheep 11. Hydatid cyst is caused by: (A) Echinococcus granulosus (B) Taenia saginata (C) Hymenolepis nana (D) Trichinella spiralis 12. Definitive host of Plasmodium is: (A) Human (B) Mosquito (C) Pig (D) Dog 13. Toxoplasmosis is caused by: (A) Leishmania (B) Toxoplasma gondii (C) Trypanosoma (D) Trichomonas vaginalis 14. The infective stage of Ascaris lumbricoides is: (A) Egg containing larva (B) Adult worm (C) Rhabditiform larva (D) Cyst 15. The common name of Enterobius vermicularis is: (A) Hookworm (B) Whipworm (C) Pinworm (D) Threadworm 16. Which parasite is diagnosed by the “scotch tape method”? (A) Trichuris trichiura (B) Enterobius vermicularis (C) Strongyloides stercoralis (D) Ancylostoma duodenale 17. The vector of Leishmaniasis is: (A) Sandfly (B) Tsetse fly (C) Blackfly (D) Mosquito 18. River blindness is caused by: (A) Loa loa (B) Onchocerca volvulus (C) Brugia malayi (D) Wuchereria bancrofti 19. Which stage of Plasmodium infects red blood cells? (A) Sporozoite (B) Merozoite (C) Gametocyte (D) Ookinete 20. The intermediate host of Taenia saginata is: (A) Pig (B) Cattle (C) Sheep (D) Dog 21. The infective stage of hookworm is: (A) Egg (B) Rhabditiform larva (C) Filariform larva (D) Cyst 22. The causative agent of African sleeping sickness is: (A) Trypanosoma cruzi (B) Trypanosoma brucei (C) Leishmania donovani (D) Plasmodium vivax 23. Which parasite is transmitted by blackfly? (A) Wuchereria bancrofti (B) Onchocerca volvulus (C) Loa loa (D) Trypanosoma 24. Cryptosporidiosis is commonly transmitted through: (A) Soil (B) Mosquito bite (C) Contaminated water (D) Air 25. Which parasite causes Chagas disease? (A) Trypanosoma cruzi (B) Leishmania tropica (C) Toxoplasma gondii (D) Trichinella spiralis 26. The vector of Chagas disease is: (A) Sandfly (B) Reduviid bug (C) Mosquito (D) Blackfly 27. Which parasite is known as the “whipworm”? (A) Ascaris lumbricoides (B) Trichuris trichiura (C) Strongyloides stercoralis (D) Ancylostoma duodenale 28. Which parasite causes trichinosis? (A) Trichuris trichiura (B) Trichinella spiralis (C) Strongyloides stercoralis (D) Ancylostoma duodenale 29. The infective stage of Schistosoma is: (A) Egg (B) Sporocyst (C) Cercaria (D) Miracidium 30. Katayama fever is associated with infection by: (A) Taenia solium (B) Schistosoma (C) Ascaris (D) Giardia 31. Which parasite is detected by acid-fast staining? (A) Entamoeba histolytica (B) Cryptosporidium parvum (C) Giardia lamblia (D) Balantidium coli 32. The intermediate host of Fasciola hepatica is: (A) Pig (B) Snail (C) Cattle (D) Sheep 33. Which parasite causes cutaneous leishmaniasis? (A) Leishmania donovani (B) Leishmania tropica (C) Leishmania mexicana (D) Both B and C 34. Which worm is associated with iron-deficiency anemia? (A) Ascaris lumbricoides (B) Hookworm (C) Trichuris trichiura (D) Enterobius vermicularis 35. The infective stage of Trichinella spiralis is: (A) Adult worm (B) Encysted larva in muscle (C) Egg (D) Rhabditiform larva 36. The intermediate host of Diphyllobothrium latum is: (A) Fish (B) Pig (C) Dog (D) Cattle 37. Which parasite causes megaloblastic anemia due to vitamin B12 deficiency? (A) Taenia solium (B) Diphyllobothrium latum (C) Hymenolepis nana (D) Echinococcus granulosus 38. Which parasite is transmitted sexually? (A) Trichomonas vaginalis (B) Giardia lamblia (C) Entamoeba coli (D) Cryptosporidium 39. Which parasite causes autoinfection in humans? (A) Strongyloides stercoralis (B) Ascaris lumbricoides (C) Trichuris trichiura (D) Giardia lamblia 40. Which parasite causes visceral larva migrans? (A) Toxocara canis (B) Taenia saginata (C) Ascaris lumbricoides (D) Ancylostoma duodenale 41. Which parasite causes cutaneous larva migrans? (A) Ancylostoma braziliense (B) Wuchereria bancrofti (C) Loa loa (D) Strongyloides stercoralis 42. Which parasite causes hyperinfection in immunocompromised individuals? (A) Strongyloides stercoralis (B) Ascaris lumbricoides (C) Trichuris trichiura (D) Hookworm 43. The intermediate host of Hymenolepis nana is: (A) Pig (B) None required (C) Cattle (D) Fish 44. Which parasite is transmitted through undercooked pork? (A) Taenia saginata (B) Taenia solium (C) Ascaris lumbricoides (D) Diphyllobothrium latum 45. The intermediate host of Dracunculus medinensis is: (A) Snail (B) Copepod (Cyclops) (C) Mosquito (D) Fish 46. The infective stage of Trichuris trichiura is: (A) Embryonated egg (B) Larva (C) Adult worm (D) Cyst 47. Which parasite causes “ground itch” at the site of entry? (A) Hookworm (B) Ascaris (C) Strongyloides (D) Trichuris 48. The definitive host of Toxoplasma gondii is: (A) Human (B) Cat (C) Dog (D) Pig 49. Which parasite causes pernicious-like anemia? (A) Diphyllobothrium latum (B) Ascaris lumbricoides (C) Ancylostoma duodenale (D) Trichuris trichiura 50. The diagnostic stage of Enterobius vermicularis is: (A) Egg (B) Adult worm (C) Larva (D) Cyst