Explore topic-wise MCQs in Protozon.

This section includes 99 Mcqs, each offering curated multiple-choice questions to sharpen your Protozon knowledge and support exam preparation. Choose a topic below to get started.

1.

Erythrocytic cycle starts with the invasion of RBCs by:

A. Sporozoites
B. Cryptomerozoites
C. Gametocytes
D. None of these
Answer» C. Gametocytes
2.

Papacrine and Paludrin are drugs used for the treatment of:

A. Malaria
B. Filaria
C. Kala-azar
D. All of these
Answer» B. Filaria
3.

Pseudopodia in Amoeba help mainly in:

A. Locomotion
B. Food capturing
C. Both (a) & (b)
D. None of these
Answer» D. None of these
4.

Cryptomerozoites in the life cycle of Plasmodium are formed in:

A. RBCs of man
B. Liver cells of man
C. Oocysts
D. Salivary glands of mosquito
Answer» C. Oocysts
5.

Zygote of Plasmodium formed after fertilization is:

A. Motile
B. Motile and called ookinete
C. Non-motile
D. None-motile and is called sporocyst
Answer» C. Non-motile
6.

Cocysts of Plasmodium are found in:

A. Gut of man
B. Gut of mosquito
C. Bolld of man
D. Blood of mosquito
Answer» C. Bolld of man
7.

Which of these stages of Plasmodium escapes the stomach of mosquito:

A. Sporozoite
B. Merozoite
C. Trophozoite
D. Gametocyte
Answer» E.
8.

Infective stages of Entamoeba histolytica are spread by:

A. Mice
B. Mosquitoes
C. House-files
D. Beg-bugs
Answer» D. Beg-bugs
9.

Black water fever' is caused by:

A. Plasmodium ovale
B. P.malariae
C. P. vivax
D. P. falciparum
Answer» E.
10.

What is common between Trypanosoma, honey bee and physalia:

A. All have glagella
B. All have polymorphism
C. All have coelenteron
D. None of these
Answer» C. All have coelenteron
11.

Recurrence of fever after every 72 hours occurs in:

A. Malignant tertian malaria
B. Benign tertian malaria
C. Quartan malaria
D. Quotidian malaria
Answer» D. Quotidian malaria
12.

Amoeba excretes by:

A. Contractile vacuole
B. Plasmalemma
C. Pseudopodia
D. None of these
Answer» C. Pseudopodia
13.

Kala-azar' is caused by:

A. Leishmania
B. Trypanosoma
C. Entamoeba
D. None of these
Answer» B. Trypanosoma
14.

Sporogony in Plasmodium involves repeated divisions of:

A. Zygote in mosquito to produce numerous sporozoites
B. Sprozoites in man to produce numerous gametes
C. Zygote in mosquito to form many merozoites
D. Zygote in man to form numerous sporozoites
Answer» B. Sprozoites in man to produce numerous gametes
15.

Meganucleus of paramecium is meant for:

A. Reproduction
B. Metabolic and vegetative functions
C. Behaviour control
D. None of these
Answer» C. Behaviour control
16.

Changas disease' is caused by:

A. T.gambiense
B. T.cruzi
C. T.rhodesiense
D. None of these
Answer» C. T.rhodesiense
17.

Sleeping sickness' is caused by:

A. Entamoeba
B. Plasmodium
C. Trypanosoma
D. None of these
Answer» D. None of these
18.

Water current drawn by Paramecium with the vestibular cilia is:

A. Vortex
B. Cortex
C. Both (a) & (b)
D. None of these
Answer» B. Cortex
19.

Which of these is not used for malarial test:

A. GBP
B. IHA
C. ELISA
D. None of these
Answer» E.
20.

What will happen if a marine protozoan is transferred to fresh water:

A. It bursts
B. It enlarges but shrinks again
C. It shrinks
D. It does not have any effect
Answer» C. It shrinks
21.

Amoebic dysentery is caused by:

A. Entamoeba histolytica
B. E. Coli
C. E.Gingivolis
D. None of these
Answer» B. E. Coli
22.

Which of these protozoan is unlikely to have a contractile vacuole:

A. Paramecium caudatum
B. Plasmodium
C. Euglena
D. Amoeba proteus
Answer» C. Euglena
23.

What will happen to contractile vacuole of Amoeba if a fresh water amoeba is kept in a medium of high osmotic potential?

A. It will work faster
B. It will remain unaffected
C. It will stop forming
D. It will remain unaffected
Answer» D. It will remain unaffected
24.

Sporogony of malarial parasite occurs in:

A. Liver of man
B. Stomach of mosquito
C. RBC of man
D. None of these
Answer» C. RBC of man
25.

Prepatient period in plasmodium falciparum is:

A. 8 days
B. 5
C. 14 - 15 days
D. 9 days
Answer» C. 14 - 15 days
26.

Bening and tertian malaria is caused by:

A. Plasmodium vivax
B. Plasmodium ovale
C. Both (a) & (b)
D. None of these
Answer» D. None of these
27.

Quinine, used as remedy for malaria is extracted from:

A. Bark of Cinchona plant
B. Bark of Cineinon
C. Oscimum leaves
D. None of these
Answer» B. Bark of Cineinon
28.

Entamoeba histolytica differs from Amoeba is not having a:

A. Nucleus
B. Food vacuole
C. Contractile vacuole
D. None of these
Answer» D. None of these
29.

Hw many amoebae are formed by a cyst of Entamoeba histolytica:

A. Two
B. Four
C. Eight
D. One
Answer» D. One
30.

Ookinete is the name of zygote of:

A. Plasmodium
B. Entamoeba
C. Leishmania
D. None of these
Answer» B. Entamoeba
31.

Stage of Plasmodium infective to primary host is transmitted by secondary host in form of:

A. Sporozoite
B. Schizont
C. Ookinete
D. Merozoite
Answer» B. Schizont
32.

Stage of Plasmodium infective to man is transmitted by:

A. Innuculation of female anopheles
B. Innuculation of male anopheles
C. Innuculation of male culex
D. Innuculation of female culex
Answer» B. Innuculation of male anopheles
33.

Mode of nutrition of Paramecium is:

A. Holozic
B. Holophytic
C. Saprozoic
D. Saprophytic
Answer» B. Holophytic
34.

During unfavourable conditions, the Amoeba reproduces by:

A. Sporulation
B. Binary fission
C. Conjugation
D. Endomexis
Answer» B. Binary fission
35.

Defensive organelles in Paramecium are which of these:

A. Trichocysts
B. Nematocysts
C. Sporocysts
D. Oocysts
Answer» B. Nematocysts
36.

Stage of Plasmodium occurring in human liver cells is:

A. Erythrocytic cycle
B. Pre-erythrocytic cycle
C. Gamogony
D. Sporogony
Answer» C. Gamogony
37.

Resultants of schiziogony in malarial parasite are:

A. Merozoites
B. Schizonts
C. Sporozoites
D. Ookinetes
Answer» C. Sporozoites
38.

Malarial parasite can be best obtained from the blood of patient:

A. One hour before rise of temperature
B. When temperature rise with rigor
C. Any time
D. Five hours after temperature becomes normal
Answer» E.
39.

Trypanosomiasis' is transmitted by:

A. tse-tse fly
B. Sand-fly
C. C.
D. D.
E.
Answer» B. Sand-fly
40.

Nutrition in Amoeba is:

A. Holozoic
B. Holophytic
C. Saprozoic
D. None of these
Answer» B. Holophytic
41.

The total area of each of the two daughter amoebae soon after binary fission of a mature amoeba is:

A. Same as that of the parent
B. Equal to half of each parent
C. Slightly less than half of each parent
D. Slightly more than half of each parent
Answer» B. Equal to half of each parent
42.

Fresh water protozoa respire by:

A. Contractle vacuole
B. Plasma membrane
C. Both (a) & (b)
D. None of these
Answer» C. Both (a) & (b)
43.

Entamoeba histolytica dies soon if kept in fresh water because:

A. It has no contractile vacuole
B. It has no food vacuole
C. It has no pseudopodia
D. It has no food
Answer» C. It has no pseudopodia
44.

Secondary host for sleeping sickness parasite is:

A. Sand-fly
B. House-fly
C. C.
D. D.
E.
Answer» B. House-fly
45.

Secondary host for malarial parasite is:

A. Male anopheles
B. Female anopheles
C. Male culex
D. Female culex
Answer» D. Female culex
46.

Which of these has only one host:

A. Entamoeba
B. Plasmodium
C. Both (a) & (b)
D. None of these
Answer» C. Both (a) & (b)
47.

Which of the following protozoan causes African sleeping sickness

A. Plasmodium vivax
B. Entamoeba gingivalis
C. Trypanosoma lewsii
D. Trypanosoma gambiense
Answer» E.
48.

Trypanosoma belongs to which of the following group?

A. mastigophora
B. sarcodina
C. sporozoa
D. ciliata
Answer» B. sarcodina
49.

Which of the following class of protozoa does not generally contain contractile vacuole?

A. Sporozoa
B. Rhizopoda
C. Flagellata
D. Cilliata
Answer» B. Rhizopoda
50.

Which of the following is not a characteristic feature of prtozoans

A. binary fission
B. contractile vacuole
C. cell membrane as an outer body covering
D. pseudopodia
Answer» D. pseudopodia