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Latest TN TRB PG Assistant Zoology Exam Question (Objective Questions), MCQ in English

Subjects : Zoology, Education Methodology, General Knowledge

Question Bank TN TRB PG Assistant (Zoology) Exam - English
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Zoology

Question 1Single Answer
The shivering, a characteristic symptom of malaria, occurs when :
  1. A
    sporozoites enter the blood
  2. B
    metacryptozoites are liberated from the liver cells
  3. C
    merozoites are liberated  from RBC with toxin
  4. D
    schizonts are formed in RBC     
Question 2Single Answer
The trophozoite of Plasmodium lives in :
  1. A
    erythrocytes of man
  2. B
    liver cells 
  3. C
    stomach of mosquito
  4. D
    blood of plasma   
Question 3Single Answer
In Paramecium, a food vacuole is formed at the posterior end of which structure?
  1. A
    Cytopharynx
  2. B
    Oral groove
  3. C
    Cytostome
  4. D
    Cytoproct
Question 4Single Answer
In a Paramecium, the trichocysts are used for :
  1. A
    fight or flight response
  2. B
    defence
  3. C
    offense
  4. D
    both (a) and (c) 
Question 5Single Answer
The disease caused by Trypanosoma cruzi is :
  1. A
    sleeping sicknees
  2. B
    chaga's disease
  3. C
    Kala-azar 
  4. D
    oriental sore  
Question 6Single Answer
The infective stage of Entamoeba histolytica is :
  1. A
    sporozoite
  2. B
    minuta form
  3. C
    mature cyst
  4. D
    trophic form  
Question 7Single Answer
Sporogony of malaria parasite occurs in :
  1. A
    liver of man
  2. B
    RBC of man
  3. C
    Stomach wall of mosquito
  4. D
    Salivary glands of mosquito   
Question 8Single Answer
Entamoeba differs from Amoeba is not having :
  1. A
    nucleus
  2. B
    pseudopodia
  3. C
    ectoplasm
  4. D
    contractile vascule  
Question 9Single Answer
Mild tertian malaria is caused by :
  1. A
    Plasmodium vivax
  2. B
    Plasmodium falciparum
  3. C
    Plasmodium ovale
  4. D
    Plasmodium malariae
Question 10Single Answer
Which adaptation enables Amoeba to survive unfavourable environmental conditions?
  1. A
    Binary fission
  2. B
    Conjugation
  3. C
    Encystment
  4. D
    Budding
Question 11Single Answer
The number of daughter paramecia produced following conjugation is :
  1. A
    8 from one conjugant
  2. B
    8 from two conjugants
  3. C
    16 from conjugants
  4. D
    8-16 from two conjugants 
Question 12Single Answer
Which enzyme secreted into the food vacuole of Amoeba primarily helps digest proteins?
  1. A
    Protease
  2. B
    Amylase
  3. C
    Lipase
  4. D
    Cellulase
Question 13Single Answer
Ingestion of some water with food in Amoeba takes place by the process of :
  1. A
    endosmosis
  2. B
    pinocytosis
  3. C
    phagocytosis
  4. D
    None of these
Question 14Single Answer
The path followed by a food vacuole in Paramecium is referred to as :
  1. A
    cycloid
  2. B
    cyclic vascular path
  3. C
    cyclosis 
  4. D
    cyclosphere
Question 15Single Answer
Sleeping sickness in man is caused by Trypanosoma by the bite of the infective :
  1. A
    Female Tse-tse fly
  2. B
    male Te-tse fly
  3. C
    both male and female Tse-tse files 
  4. D
    male and female aedes moquito
Question 16Single Answer
What is the principal nitrogenous excretory product of Amoeba?
  1. A
    Ammoni
  2. B
    Urea
  3. C
    Uric acid
  4. D
    Creatinine
Question 17Single Answer
In the life cycle of Plasmodium, humans function primarily as which type of host?
  1. A
    Definitive host
  2. B
    Intermediate host
  3. C
    Vector host
  4. D
    Paratenic host
Question 18Single Answer
Locomotory organelles in the parasitic protozoa of class sporozoa are :
  1. A
    cilia
  2. B
    flagella
  3. C
    pseudopodia
  4. D
    absent
Question 19Single Answer
In Paramecium, proteins are digested :
  1. A
    partly in endoplasm and partly in food vacuole 
  2. B
    during the acid phase of the food vacuole
  3. C
    during the alkaline phase of the food vacuole
  4. D
    both (b) and (c)
Question 20Single Answer
The schizogony cycle of Plasmodium takes place in :
  1. A
    alimentary canal of mosquito
  2. B
    liver of man
  3. C
    liver and RBC of man
  4. D
    RBC of man
Question 21Single Answer
In the late neurological stage of African trypanosomiasis, Trypanosoma parasites invade which system?
  1. A
    Digestive system
  2. B
    Central nervous system
  3. C
    Skeletal system
  4. D
    Reproductive system
Question 22Single Answer
Incubation period of Plasmodium vivax is about :
  1. A
    6-8 weeks
  2. B
    10-12 days
  3. C
    15-20 days
  4. D
    20-40 days
Question 23Single Answer
The micronucleus of Paramecium is primarily concerned with which function?
  1. A
    Vegetative metabolism
  2. B
    Osmoregulation
  3. C
    Reproduction and genetic exchange
  4. D
    Locomotion
Question 24Single Answer
Amoebiasis is caused by :
  1. A
    Plasmodium vivax
  2. B
    Taenia solium
  3. C
    Entamoeba histolytica
  4. D
    Entamoeba gingivalis
Question 25Single Answer
Mapacrine and Paludrine drugs re used for :
  1. A
    malaria
  2. B
    amoebiasis
  3. C
    tapeworms
  4. D
    ascariasis                                                                          
Question 26Single Answer
Nuclear dimorphism is observed in :
  1. A
    Entamoeba
  2. B
    Plasmodium
  3. C
    Paramecium
  4. D
    Trypanosoma
Question 27Single Answer
Trypanosoma gambiense inhabits the human body in the :
  1. A
    blood
  2. B
    lymph
  3. C
    blood and crebrospinal fluid
  4. D
    cerebrospinal fluid
Question 28Single Answer
Malaria is a diseases transmitted by the bite of :
  1. A
    Male Culex
  2. B
    female Culex
  3. C
    male Anophles
  4. D
    female Anopheles
Question 29Single Answer
Benign tertian malaria is caused by :
  1. A
    P. falciparum
  2. B
    P.vivax
  3. C
    P. malarice
  4. D
    P.ovale   
Question 30Single Answer
The pseudopodia are formed in Amoeba :
  1. A
    when it comes in contact with food particles
  2. B
    by movement of surrounding water
  3. C
    by exchange of salts with the medium
  4. D
    by sol-gel transformation of cylopasm
Question 31Single Answer
In an electric field, the paramecium moves :
  1. A
    towards the negative pole
  2. B
    towards the positive pole
  3. C
    around to avoid effect of current 
  4. D
    forms cyst and does not move
Question 32Single Answer
The oriental sores in human skin are caused by :
  1. A
    Leishmania tropica
  2. B
    Phlebotonus
  3. C
    Balantidiun
  4. D
    Leishmania donovani      
Question 33Single Answer
Trypanosoma  shows the phenomnon of :
  1. A
    amorphism
  2. B
    dimorphism
  3. C
    trimorphism
  4. D
    polymorphim
Question 34Single Answer
Down stroke and recovery stroke are characteristic of : 
  1. A
    movement of pseudopodia
  2. B
    movement of flagella
  3. C
    movement of cilia
  4. D
    None of these 
Question 35Single Answer
Which stage of Plasmodium invades human erythrocytes after being released from hepatic schizonts?
  1. A
    Sporozoite
  2. B
    Merozoite
  3. C
    Ookinete
  4. D
    Gametocyte
Question 36Single Answer
Highly polypoid meganucleus is present in :
  1. A
    flagellates
  2. B
    ciliates
  3. C
    sporozoans
  4. D
    rhizopodans   
Question 37Single Answer
The life cycle of Plasmodium in human blood is called :
  1. A
    schizogony
  2. B
    syngamy
  3. C
    exo-erythrocytic schizogny
  4. D
    sporogony
Question 38Single Answer
Nitrogenous wastes in Amoeba are expelled through :
  1. A
    plasmalmma
  2. B
    peudopodia
  3. C
    hyaline cap
  4. D
    contractile vacuole
Question 39Single Answer
The erythrocytic phase of the Plasmodium life cycle occurs primarily in which cells?
  1. A
    Hepatocytes
  2. B
    Mosquito midgut cells
  3. C
    Human erythrocytes
  4. D
    Mosquito salivary gland cells
Question 40Single Answer
Which of the following organelles are associated with defence in protozoans ?
  1. A
    Nematocysts
  2. B
    Statocysts
  3. C
    Trichocysts
  4. D
    Octocysts
Question 41Single Answer
On which date is World Malaria Day observed annually?
  1. A
    25 April
  2. B
    7 April
  3. C
    31 May
  4. D
    1 December
Question 42Single Answer
When the causes of malaria was not known, it was supposed to be caused by ?
  1. A
    dirty water
  2. B
    foul air
  3. C
    mosquito
  4. D
    housefly
Question 43Single Answer
Treatment of the infection by malarial parasite in the principal host is studied under :
  1. A
    Chemotherapy
  2. B
    chemodiagnosi
  3. C
    chemo-prophylaxis
  4. D
    prophylaxis
Question 44Single Answer
Gametocytes of Plasmodium are formed in :
  1. A
    liver of man
  2. B
    blood of man
  3. C
    RBC of man
  4. D
    stomach of female mosquito
Question 45Single Answer
Method of food intake in Paramecium is :
  1. A
    holozoic
  2. B
    holophytic
  3. C
    saprozoic
  4. D
    autozoic
Question 46Single Answer
Transmission of Entamoeba histolytica most commonly occurs through which route?
  1. A
    Bite of an infected mosquito
  2. B
    Inhalation of airborne droplets
  3. C
    Skin penetration by larvae
  4. D
    Ingestion of contaminated food or water
Question 47Single Answer
What is the primary significance of encystment in Amoeba under adverse environmental conditions?
  1. A
    Protection and survival
  2. B
    Sexual reproduction
  3. C
    Locomotion
  4. D
    Intracellular digestion
Question 48Single Answer
In Amoeba proteus , the term proteus is after the name of :
  1. A
    the discoverer
  2. B
    a diseases
  3. C
    a god
  4. D
    a place
Question 49Single Answer
Which giant multinucleate amoeboid organism is traditionally placed in the genus Pelomyxa?
  1. A
    Pelomyxa palustris
  2. B
    Amoeba proteus
  3. C
    Entamoeba histolytica
  4. D
    Arcella vulgaris  
Question 50Single Answer
Which statement correctly describes the distribution of cilia in Paramecium?
  1. A
    All cilia are exactly equal in length
  2. B
    Cilia occur only around the oral groove
  3. C
    Posterior cilia may form a longer caudal tuft
  4. D
    Cilia are restricted to the anterior end
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