1. Parasitism is best defined as a relationship in which one organism, the parasite, ____
a) Benefits at the expense of the host
b) Benefits without affecting the host
c) Causes mutual benefits with the host
d) Lives in symbiosis with the host
Answer: a) Benefits at the expense of the host
2. Which of the following is not a classification of parasites based on their habitat?
a) Endoparasites
b) Ectoparasites
c) Mesoparasites
d) Hyperparasites
Answer: c) Mesoparasites
3. The study of parasites is called:
a) Parasitology
b) Pathology
c) Microbiology
d) Entomology
Answer: a) Parasitology
4. Which of the following is not a mode of transmission of parasites?
a) Direct contact
b) Vector-borne transmission
c) Sexual transmission
d) Airborne transmission
Answer: d) Airborne transmission
5. An example of an endoparasite is:
a) Tick
b) Tapeworm
c) Flea
d) Louse
Answer: b) Tapeworm
6. Which of the following parasites is responsible for causing malaria in humans?
a) Plasmodium
b) Trypanosoma
c) Leishmania
d) Toxoplasma
Answer: a) Plasmodium
7. Which type of parasite spends only part of its life cycle on the host?
a) Obligate parasite
b) Facultative parasite
c) Mesoparasite
d) Hyperparasite
Answer: b) Facultative parasite
8. An example of an ectoparasite is:
a) Roundworm
b) Hookworm
c) Tick
d) Tapeworm
Answer: c) Tick
9. Parasites that live inside the host’s body are called:
a) Ectoparasites
b) Exoparasites
c) Endoparasites
d) Mesoparasites
Answer: c) Endoparasites
10. Which of the following is not a type of protozoan parasite?
a) Plasmodium
b) Giardia
c) Taenia
d) Trypanosoma
Answer: c) Taenia
11. Which of the following is not a common mode of parasite entry into the host?
a) Ingestion
b) Inhalation
c) Penetration of the skin
d) Injection by vectors
Answer: d) Injection by vectors
12. The larvae of which parasite cause cutaneous larva migrans in humans?
a) Ancylostoma
b) Toxocara
c) Strongyloides
d) Trichinella
Answer: a) Ancylostoma
13. Which of the following parasites is responsible for causing Chagas disease?
a) Trypanosoma cruzi
b) Plasmodium falciparum
c) Leishmania donovani
d) Entamoeba histolytica
Answer: a) Trypanosoma cruzi
14. Which of the following is a common vector for transmitting parasites to humans?
a) Mosquitoes
b) Flies
c) Ticks
d) All of the above
Answer: d) All of the above
15. The eggs of which parasitic worm can cause the disease called schistosomiasis?
a) Tapeworm
b) Hookworm
c) Liver fluke
d) Blood fluke
Answer: d) Blood fluke
16. What is the scientific name for the head louse?
a) Pediculus humanus capitis
b) Sarcoptes scabiei
c) Phthirus pubis
d) Ancylostoma duodenale
Answer: a) Pediculus humanus capitis
17. Which of the following is a zoonotic parasite transmitted by the fecal-oral route?
a) Toxoplasma gondii
b) Echinococcus granulosus
c) Plasmodium vivax
d) Entamoeba histolytica
Answer: a) Toxoplasma gondii
18. What is the scientific name for the pinworm?
a) Enterobius vermicularis
b) Ascaris lumbricoides
c) Taenia solium
d) Trichinella spiralis
Answer: a) Enterobius vermicularis
19. Which of the following parasites causes African sleeping sickness?
a) Plasmodium falciparum
b) Trypanosoma brucei
c) Leishmania donovani
d) Giardia lamblia
Answer: b) Trypanosoma brucei
20. What is the intermediate host of the tapeworm Taenia solium?
a) Pig
b) Cow
c) Fish
d) Rabbit
Answer: a) Pig
21. Which of the following parasites is responsible for causing river blindness?
a) Wuchereria bancrofti
b) Loa loa
c) Onchocerca volvulus
d) Dracunculus medinensis
Answer: c) Onchocerca volvulus
22. Which of the following parasites is responsible for causing toxoplasmosis?
a) Toxoplasma gondii
b) Leishmania donovani
c) Giardia lamblia
d) Trypanosoma cruzi
Answer: a) Toxoplasma gondii
23. Which of the following is a common symptom of trichinosis?
a) Diarrhea
b) Muscle pain and weakness
c) Jaundice
d) Rash
Answer: b) Muscle pain and weakness
24. Which of the following parasites is responsible for causing elephantiasis?
a) Plasmodium falciparum
b) Wuchereria bancrofti
c) Toxoplasma gondii
d) Trypanosoma brucei
Answer: b) Wuchereria bancrofti
25. What is the intermediate host of the liver fluke Fasciola hepatica?
a) Snail
b) Fish
c) Cattle
d) Pig
Answer: a) Snail
26. Which of the following parasites is responsible for causing leishmaniasis?
a) Plasmodium falciparum
b) Trypanosoma brucei
c) Leishmania donovani
d) Toxoplasma gondii
Answer: c) Leishmania donovani
27. Which of the following parasites is responsible for causing Guinea worm disease?
a) Wuchereria bancrofti
b) Dracunculus medinensis
c) Onchocerca volvulus
d) Loa loa
Answer: b) Dracunculus medinensis
28. What is the intermediate host of the dog tapeworm Echinococcus granulosus?
a) Sheep
b) Flea
c) Rodent
d) Rabbit
Answer: a) Sheep
29. Which of the following parasites is responsible for causing amoebic dysentery?
a) Giardia lamblia
b) Entamoeba histolytica
c) Trichomonas vaginalis
d) Trypanosoma cruzi
Answer: b) Entamoeba histolytica
30. What is the definitive host of the roundworm Ascaris lumbricoides?
a) Human
b) Dog
c) Cat
d) Bird
Answer: a) Human
31. Which of the following parasites is responsible for causing schistosomiasis?
a) Schistosoma haematobium
b) Schistosoma japonicum
c) Schistosoma mansoni
d) All of the above
Answer: d) All of the above
32. What is the intermediate host of the hookworm Necator americanus?
a) Dog
b) Snail
c) Flea
d) None of the above
Answer: d) None of the above
33. Which of the following parasites is responsible for causing cyclosporiasis?
a) Cyclospora cayetanensis
b) Cryptosporidium parvum
c) Isospora belli
d) Microsporidia spp.
Answer: a) Cyclospora cayetanensis
34. What is the intermediate host of the filarial worm Wuchereria bancrofti?
a) Mosquito
b) Dog
c) Snail
d) Flea
Answer: a) Mosquito
35. Which of the following parasites is responsible for causing giardiasis?
a) Giardia lamblia
b) Entamoeba histolytica
c) Trichomonas vaginalis
d) Trypanosoma cruzi
Answer: a) Giardia lamblia
36. What is the definitive host of the dog tapeworm Dipylidium caninum?
a) Human
b) Dog
c) Cat
d) Bird
Answer: b) Dog
37. Which of the following parasites is responsible for causing trichomoniasis?
a) Giardia lamblia
b) Entamoeba histolytica
c) Trichomonas vaginalis
d) Trypanosoma cruzi
Answer: c) Trichomonas vaginalis
38. What is the intermediate host of the tapeworm Diphyllobothrium latum?
a) Snail
b) Fish
c) Cattle
d) Pig
Answer: b) Fish
39. Which of the following parasites is responsible for causing cryptosporidiosis?
a) Cryptosporidium parvum
b) Cyclospora cayetanensis
c) Isospora belli
d) Microsporidia spp.
Answer: a) Cryptosporidium parvum
40. What is the definitive host of the liver fluke Clonorchis sinensis?
a) Snail
b) Fish
c) Cattle
d) Human
Answer: d) Human
41. Which of the following parasites is responsible for causing trichuriasis?
a) Trichuris trichiura
b) Ascaris lumbricoides
c) Enterobius vermicularis
d) Necator americanus
Answer: a) Trichuris trichiura
42. What is the intermediate host of the tapeworm Hymenolepis nana?
a) Snail
b) Fish
c) Flea
d) None of the above
Answer: d) None of the above
43. Which of the following parasites is responsible for causing babesiosis?
a) Babesia microti
b) Plasmodium falciparum
c) Trypanosoma cruzi
d) Leishmania donovani
Answer: a) Babesia microti
44. What is the definitive host of the blood fluke Schistosoma haematobium?
a) Human
b) Snail
c) Fish
d) Cattle
Answer: a) Human
45. Which of the following parasites is responsible for causing echinococcosis?
a) Echinococcus granulosus
b) Echinococcus multilocularis
c) Echinococcus vogeli
d) All of the above
Answer: d) All of the above
46. What is the intermediate host of the tapeworm Taenia saginata?
a) Pig
b) Cow
c) Fish
d) Rabbit
Answer: b) Cow
47. Which of the following parasites is responsible for causing cyclosporiasis?
a) Cyclospora cayetanensis
b) Cryptosporidium parvum
c) Isospora belli
d) Microsporidia spp.
Answer: a) Cyclospora cayetanensis
48. What is the definitive host of the pork tapeworm Taenia solium?
a) Pig
b) Cow
c) Fish
d) Rabbit
Answer: a) Pig
49. Which of the following parasites is responsible for causing leishmaniasis?
a) Plasmodium falciparum
b) Trypanosoma brucei
c) Leishmania donovani
d) Toxoplasma gondii
Answer: c) Leishmania donovani
50. What is the intermediate host of the filarial worm Onchocerca volvulus?
a) Mosquito
b) Dog
c) Snail
d) Flea
Answer: a) Mosquito