1000+ Phylum - Protozoa Multiple Choice Question Answer [Solved]

1. Entamoeba gingivalis is a parasite in the
A. pharynx of man
B. unhealthy tissue around teeth of man
C. gum boil of man
D. infected salivary glands of man
Answer : B

2. Trypanosoma shows the phenomenon of
A. amorphism
B. dimorphism
C. trimorphism
D. polymorphism
Answer : D

3. The disease caused by Trypanosoma cruzi is
A. sleeping sickness
B. chaga's disease
C. kala azar
D. oriental sore
Answer : B

4. African sleeping sickness or Gambiense fever is caused by
A. Entamoeba
B. Trypanosma
C. Leishmania
D. Trichomonas
Answer : B

5. Vector can be defined as
A. disease transmitting host
B. natural reservoir of disease causing organism
C. pathogenic organism
D. any kind of disease transmitting organism
Answer : D

6. When the causes ot malaria was not known, it was supposed to be cuased by
A. dirty water
B. foul air
C. mosquito
D. housefly
Answer : B

7. Gametocytes of Plasmodium are formed in
A. liver of man
B. blood of man
C. RBC of man
D. stomach of female mosquito
Answer : C

8. The resultant cells of schizogony in the life history of malarial parasite are
A. schizonts
B. merozoites
C. ookinetes
D. sporozoites
Answer : B

9. Pseudopodia of Amoeba are important for
A. locomotion only
B. feeding only
C. both (a) and (b)
D. offence of defence
Answer : C

10. The disease caused by Entamoeba gingimlis is transmitted by
A. flies
B. kissing
C. air
D. mosquitoes
Answer : B

11. Trypanosomiasis is a disease, transmitted by vector
A. Louse
B. Tsetse fly
C. Mayfly
D. Firefly
Answer : B

12. The rossette stage in lif^ cycle of Plasmodium is found in
A. blood of man
B. RBC of man
C. liver of man
D. stomach of Anopheles mosquito
Answer : B

13. Mapacrine and Paludrine drugs are used for
A. malaria
B. amoebiasis
C. tapeworms
D. ascariasis
Answer : A

14. The cilia in Paramecium are
A. all equal
B. all unequal
C. longer at posterior side
D. longer at anterior side
Answer : C

15. The ecological niche of Entamoeba histolytica is
A. small intestine of man
B. arge intestine of man
C. fresh water body such as ponds, rivers etc.
D. stagnaant water
Answer : B

16. Protozoa which completely lack trophj organelles are classifed under
A. sporozoa
B. rhizopoda
C. ciliophora
D. flagellata
Answer : A

17. The sporozoites of Plasmodium first attack
A. RBC
B. liver cells
C. muscles
D. intestine
Answer : B

18. The energy for Amoeba for doing work comes from
A. diffusion of ATP molecules from ingested organisms
B. oxidation of nutrients to form ATP
C. free energy
D. all of these
Answer : B

19. Trophozoites of E.histolytica reproduced by
A. binary fission
B. conjugation
C. autogamy
D. budding
Answer : A

20. Malaria is a disease transmitted by the bite of
A. male Culex
B. female Culex
C. male A nopheles
D. female Anopheles
Answer : D

21. Benign tertian malaria is caused by
A. P. falciparum
B. P. vivax
C. P. malariae
D. P. ovale
Answer : B

22. Nitrogenous wastes in Amoeba are expelled through
A. plasmalemma
B. pseudopodia
C. hyaline cap
D. contractile vacuole
Answer : A

23. Schuffner's granules or dots are found in
A. trophozoite
B. sporozoite
C. schizont
D. merozoite
Answer : C

24. The intermediate host in the life cycle of �. histolytica is
A. Housefly
B. Mosquitoes
C. Tsetse fly
D. None of these
Answer : D

25. Plasmalemma membrane covers thebody of
A. Taenia solium
B. Paramecium
C. Amoeba proteus
D. Plasmodium
Answer : C

26. The trophozoite of Plasmodium lives in
A. erythrocytes of man
B. liver cells
C. stomach of mosquito
D. blood plasma
Answer : A

27. Under unfavourable conditions, the Amoeba reproduces by
A. binary fission
B. conjugation
C. encystment
D. endomixis
Answer : C

28. The sexual phase of life cycle of Plasmodium is completed in
A. blood of man
B. liver of man
C. stomach of female anopheles
D. salivary glands of female anopheles
Answer : C

29. Attack of malaria occurs every fourth day when patient is infected by
A. Plasmodium ovale
B. Plasmodium malariae
C. Plasmodium falciparum
D. Plasmodium vivax
Answer : D

30. A digenic protozoan parasite is
A. Monocystis
B. Amoeba
C. Plasmodium
D. Opalina
Answer : D

31. The trophozoite of Entamoeba histolytica reproduces by
A. binary fission
B. sporulation
C. amitosis
D. mitosis
Answer : A

32. Kala-azar is a disease caused by
A. Trypanosma gambiense transmitted by Tsetse fly
B. Leishmania donovani transmitted by sandfly
C. Taenia solium transmitted by infected pork
D. Wuchereria bancrofti transmitted by Culex
Answer : B

33. Malignant tertian malaria is caused by
A. P. ovale
B. P.vivax
C. P. malariae
D. P. falciparum
Answer : D

34. The process of reconstitution of macro-nulceus in Paramecium without any change in micro-nucleus is called
A. Cytogamy
B. Hemimixis
C. Endomixis
D. Autogamy
Answer : D

35. The erthrocytic phase of the life cycle of Plasmodium passes in
A. the stomach of female amopheles mosquito
B. parenchymatous cells of liver of man
C. erythrocytes of man
D. erythrocytes and blood of man
Answer : B

36. A food vacuole develops in Paramecium at the distal end of
A. cytopharynx
B. oral grove
C. cytostome
D. oesophagus
Answer : D

37. The giant Amoeba is
A. Amoeba proteus
B. Choas
C. Foraminifera
D. Pelomyxa
Answer : D

38. In the life cycle of Plasmodium, man is the
A. primary host
B. intermediate host
C. secondary host
D. alternative host
Answer : A

39. Amoebiasis is caused by
A. Plasmodium vivax
B. Taenia solium
C. Entamoeba histolytica
D. Entamoeba gingimlis
Answer : C

40. Malarial parasites could best be obtained from a patient
A. an hour before rise of temperature
B. when temeprature rises with rigor
C. when temeprature comes down to normal
D. five hours after the temperature reaches normal level.
Answer : D

41. Method of food intake in Paramecium is
A. holozoic
B. holophytic
C. saprozoic
D. autozoic
Answer : A

42. The path followed by a food vacuole in Paramecium is referred to as
A. cycloid
B. cyclic vascular path
C. cyclosis
D. cyclosphere
Answer : C

43. Locomotory organelles in the parasitic protozoa of class sporozoa are
A. cilia
B. flagella
C. pseudopodia
D. absent
Answer : D

44. If a fresh water Amoeba for some reason in unable to form contractile vacuole, it will
A. stop forming pseudopodia
B. stop manufacturing metabolic water
C. burst consequent to osmotic swelling
D. become static for some time
Answer : C

45. The digestive enzymes in Paramecium are secreted in
A. food vacuoles directly
B. lysosomes and then released into food vacuole
C. endoplasm and then pass into food vacuole
D. both lysosomes and endoplasm
Answer : B

46. The catabolic wastes in Amoeba consist of
A. water and CO2
B. water, CO2 and minerals
C. Water, CO2, minerals and urea
D. all of these
Answer : C

47. A liver biopsy of a patient suffering from amoebic hepatic abscess would demonstrate the presence of
A. trophozoites
B. cysts
C. precystic stages
D. sporozoites
Answer : D

48. The pseudopodia ar formed in Amoeba
A. when it comes in contact with food particles
B. by movement of surrounding water
C. by exchange of salts with the medium
D. by sol-gel transformation of cytoplasm
Answer : D

49. The number of daughter paramecia produced following conjugation is
A. 8 from one conjugant
B. 8 from two conjugants
C. 16 from two conjugants
D. 8-16 from two conjugants
Answer : B

50. Asexual reproduction during schizogony of malarial parasite is a kind of
A. binary fission
B. budding
C. fragmentation
D. multiple fission
Answer : D