Phylum - Protozoa MCQ Solved Paper for UPSC CDS

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

2. 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

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

4. When kerosene is sprayed on the stagnant water wherein the larvae of Anopheles develop, it
A. burns the body wall of the larvae
B. diffuses through the body wall and kills them
C. suffocates them to death
D. prevents contact of spiracles with air
Answer : D

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

6. 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

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

8. Characters that are more useful in classification of animals are
A. morphological features
B. homologous features
C. analogous features
D. none of these
Answer : B

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

10. 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

11. 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

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

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

14. 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

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

16. 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

17. In Amoeba proteus, the term proteus is after the name of
A. the discoverer
B. a disease
C. a god
D. a place
Answer : C

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

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

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

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

22. 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

23. The schizogony cycle of Plasmodium takes place in
A. alimentary canal of mosquito
B. liver of man
C. liver and RBC of man
D. RBC of man
Answer : C

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

25. Sporozoites of Plasmodium vivax are produced from
A. ookinete
B. gametocytes
C. merozoites
D. sporoblasts
Answer : C

26. 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

27. 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

28. Highly polypoid meganucleus is present in
A. flagellates
B. ciliates
C. sporozoans
D. rhizopodans
Answer : B

29. The feeding stage in the life cycle of PlasA tnodium is
A. merozoite
B. sporozoite
C. cryptozoite
D. trophozoite
Answer : D

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

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

32. Amoeba secretes digestive enzymes to hydrolyse
A. starch
B. sugar
C. proteins
D. all of these and fats
Answer : D

33. 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

34. Trypanosoma gambiense inhabits the human body in the
A. blood
B. Lymph
C. blood and cerebrospinal fluid
D. cerebrospinal fluid
Answer : C

35. In an electric field, the Paramecium moves
A. towards the negative pole
B. towards the positive pole
C. around to avoid effect of current
D. forms cyst and does not move
Answer : A

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

37. Sporogony of malaria parasite occurs in
A. liver of man
B. RBC of man
C. stomach wall of mosquito
D. salivary glands of mosquito
Answer : C

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

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

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

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

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

43. 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

44. The zoological name of giant amoeba is
A. Amoeba proteus
B. Arcella sp.
C. Chaos chaos
D. Ovale sp.
Answer : C

45. The life-cycle of malarial parasite in liver is called
A. erythrocytic stage
B. pre-erythrocytic stage
C. exo-erythrocytic stage
D. post-erythrocytic stage
Answer : B

46. N.M.E.P is the abbreviation of
A. Naitonal Mosquito Eridication Programme
B. National Malaria Elimination Programme
C. National Malaria Eradication Programme
D. National Malaria Elimination Process
Answer : C

47. 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

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

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

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