Phylum - Protozoa MCQ Solved Paper for SSC CPO

1. 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

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

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

4. Treatment of the infection by malarial parasite in the principal host is studied under
A. chemo-therapy
B. chemo-diagnosis
C. chemo-prophy laxis
D. prophylaxis
Answer : A

5. Process of reconstitution of nuclei in a single paramecium without fusion of gametic nuclei is
A. endomixis
B. hemimixis
C. cytogamy
D. none of these
Answer : A

6. Golgi cycle in Plasmodium occurs in man, in
A. blood
B. RBC
C. liver cells
D. stomach
Answer : B

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

8. According to Whittaker's system of classification, all the living organisms are classifed into 5 kingdoms and Viruses are placed under
A. Monera
B. Protista
C. Protoctista
D. None of these
Answer : D

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

10. 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

11. Entamoeba differs from Amoeba in not having
A. nucleus
B. pseudopodia
C. ectoplasm
D. contractile vascule
Answer : D

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

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

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

15. Incubation period of Plasmodium vwax is about
A. 6-8 weeks
B. 10-12 days
C. 15-20 days
D. 20-40 days
Answer : B

16. The function of neuro-motor system of Paramecium is
A. co-ordination of various external stimuli
B. co-ordination of ciliary beat
C. control of contractile vacuole
D. any of these
Answer : B

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

18. The Trx/panosoma causes sleeping sickness in man. It finally involves
A. liver
B. blood
C. brain
D. cerebro-spinal fluid
Answer : D

19. The mode of life of Plasmodium in man and mosquito respectively is
A. intracellular in both
B. intercellular in both
C. intracellular and intercellular
D. intercellular and intracellular
Answer : C

20. Mild tertian malaria is caused by
A. Plasmodium vivax
B. Plasmodium falciparum
C. Plasmodium ovale
D. Plasmodium malariae
Answer : A

21. Erythrocytic cycle of Plasmodium produces
A. schizonts
B. sporozoites
C. merozoites
D. metacryptomerozoites;
Answer : A

22. Which of the following is a correct matching ?
A. Yellow fever mosquitoes toga virus B
B. Rabies saliva myxomavirus
C. Poliomyelitis fleas poliovirus
D. Tobacco mosaic disease aphids tobacco mosaic virus
Answer : A

23. 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

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

25. The energy for Amoeba fo 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

26. 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

27. Sleeping sickness in man is caused by Trypanosoma by the bite of the infective
A. female Tsetse fly
B. male Tsetse fly
C. both male and female Tsetse flies
D. male and female aedes mosquito
Answer : C

28. 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

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

30. The micronucleus in Paramecium is concerried with
A. vegetative function of the body
B. all the functions of the body
C. reproductive function of the body
D. locomotion
Answer : B

31. Which day is celebrated as Malaria day ?
A. 20th August
B. 15th August
C. 26th Janurary
D. 5th June
Answer : A

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

33. The oriental sores in human skin are caused by
A. Leishmania tropica
B. Phlebotomus
C. Balantidium
D. Leishmania donovani
Answer : A

34. The cell anus in some protozoans known as
A. cytoproct
B. peristome
C. cytostome
D. none of these
Answer : A

35. The transmission of Entamoeba histolytica takes place by
A. female anopheles mosquito
B. air
C. kisisng
D. contaminated food and water
Answer : A

36. Schizont stage in the life cycle of malarial parasite occurs in
A. erythrocytes of man
B. stomach of Anopheles
C. salivary glands of Anopheles
D. blood of man
Answer : A

37. Inoculation in malaria is out of question because
A. Plasmodium produces minute bodies
B. Plasmodium produces antitoxins
C. Plasmodium produces antitoxins and antibodies
D. All of these
Answer : A

38. 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

39. The first generation in the asexual phase of Plasmodium in RBCs of man is known as
A. trophozoites
B. merozoites
C. metacryptomerozoi tes
D. phanerozoites
Answer : B

40. Trypanosoma is transmitted by
A. contamination
B. kissing
C. contagination
D. inoculation
Answer : D

41. The cysts of E.histolytica develop in an infected individual in the
A. intestinal wall
B. lumen of intestine
C. tissues of man
D. areas of metastatic inversion
Answer : B

42. 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

43. The life cycle of Plasmodium in human blood is called
A. schizogony
B. syngamy
C. exo-erythro cytic schizogony
D. sporogony
Answer : A

44. Ingestion of some water with food in Amoeba takes place by the process of
A. endosmosis
B. pinocytosis
C. phagocytosis
D. none of these
Answer : C

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

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

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

48. In a Paramecium, the trichocysts are used for
A. fight or flight response
B. defence
C. offense
D. both (b) and (c)
Answer : B

49. 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

50. 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