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Zoology Papers 2009

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  • Zoology Papers 2009

    FEDERAL PUBLIC SERVICE COMMISSION
    COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
    IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2008.

    Zoology I

    SECTION I

    Solve 2 questions from each section. Total of four questions.



    Q 1. a : Write an essay on “Protozoa and diseases” 10
    b. What are coral reefs? Give an account of various forms of coral reefs.6
    c. Coelenterates show some resemblances with Porifera. Discuss briefly 4

    Q2: a Give an account of canal system in sponges. 10
    b. what is adaptation? Briefly discuss parasitic adaptations in platyhelminthes.
    c. define the following terms. 4 marks.
    1. Polymorphism
    2. Metamerism
    3. parasitism
    4. osmoregulation.

    Q3 Describe water vascular system of Echinodermata 10 marks.
    b. Give an account of human diseases caused by nematodes. 7 marks.
    c. what is conjugation? Briefly discuss its significance 3 marks

    Q4. write short notes on:
    1. torsion in gastropods
    2. flame cells
    3. spicules
    4.coelom.

    SECTION II

    Q5 a write an essay on flight adaptations of birds. 10 marks
    b. what is cleavage? Describe its types , with example found in chordates. 6 marks.
    c. what are the functions of blood. 4 marks.

    Q6. what is placenta? Give its classification in mammals according to the mode of implantation.
    b. describe various types of heart found in vertebrates 8marks
    c.give classification of vertibrate eggs according to the quantity of yolk they contain 4 marks.

    Q7 write short notes on

    1. uriniferous tubule of a mammal
    2. neuron
    3. function of skin
    4. structure of bone.



    FEDERAL PUBLIC SERVICE COMMISSION
    COMPETITIVE EXAMINATION FOR RECRUITMENT TO POSTS
    IN BPS – 17 UNDER THE FEDERAL GOVERNMENT, 2008.

    Zoology II


    Do only four questions from this section.

    1. a Give an account of mechanism by which living cell is believed to synthesize proteins. 12 marks
    b. explain how CO2 is transported by the blood? 8 marks

    2. a describe structure and function of cell membrane 12 marks
    b. how is the nerve impulse generated and conducted? 8 marks

    3. a Describe the prophase I of meiosis in detail with the help of labeled diagram 10 marks.
    b. give an account of digestion of food in mammals 10 marks.

    4. describe the structure and function of E.R 10 marks
    b. What is hemoglobin? How it carries oxygen in the blood? What happen when carbon monoxide combine with hemoglobin? 7 marks.
    c. differentiate bw pinocytosis and phagocytosis. 3 marks

    5. Give an account of mendal law of segregation with example 10 marks
    b. what is vestigal organ ? presence of vestigial organ is taken as an evidance of evolution discuss 10 marks.

    6. what are biochemical cycles? Describe the carbon cycle in detail.
    b. Given an account of Lamarck’s theory of evolution. 10 marks.

    7 Write short notes on
    1. Natural selection
    2. Mutation
    3 Harmones
    4. chromosomal aberrations.
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