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Zoology - Immunology Practice Question Paper

12th Standard EM

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Biology

Time : 01:00:00 Hrs
Total Marks : 50
    8 x 1 = 8
  1. Paratope is an

    (a)

    Antibody binding site on variable regions

    (b)

    Antibody binding site on heavy regions

    (c)

    Antigen binding site on variable regions

    (d)

    Antigen binding site on heavy regions

  2. All are peripheral lymphoid organs except

    (a)

    Lymph nodes

    (b)

    Spleen

    (c)

    Mucosa associated lymphoid tissue

    (d)

    Thymus

  3. B Cells are activated by

    (a)

    Complement

    (b)

    Antibody

    (c)

    Interferon

    (d)

    Antigen

  4. ______ is not a feature of acquired immunity.

    (a)

    diversity

    (b)

    recognitionof self

    (c)

    non-specific

    (d)

    memory

  5. Lymph nodes are seen in the ______

    (a)

    Toes

    (b)

    heart

    (c)

    Neck

    (d)

    Palm

  6. ______ is a second generation vaccine.

    (a)

    Polio

    (b)

    MMR

    (c)

    Hepatitis B

    (d)

    DPT

  7. ______ is a secondary lymphoid organ found in pharynx.

    (a)

    Adenoid

    (b)

    Tonsils

    (c)

    Thymus

    (d)

    Spleen

  8. ______ is the first one to encounter the antigen that enters tissue spaces.

    (a)

    Spleen

    (b)

    Lymph node

    (c)

    Bone marrow

    (d)

    GALT

  9. 1 x 1 = 1
  10. (i) When a cell undergoes malignant transformation it acquires a new surface antigen.
    (ii) Allergy responses are medIated by IgA.
    (iii) Western blot test deted~ the' viral core protein.
    (iv) Passive immunity requires the body to produce antibodies
    (a) ii and iv
    (b) iii and iv
    (c) i and iii
    (d) i and iv

    ()

    i and iii

  11. 1 x 2 = 2
  12. Assertion: Opsonisation results in clumping of antigens.
    Reason: It results in production of antitoxins.
    (a) A and R are true, R is the correct explanation of A
    (b) A and R are true, R is not the correct explanation of A
    (c) A is true, R is false
    (d) Both A and R are false

  13. 2 x 2 = 4
  14. (a) precipitation
    (b) opsonisation
    (c) diapedesis
    (d) neutralization

  15. (a) Dendritic cells
    (b) Axon
    (c) Macrophages
    (d) Leucocytes

  16. 3 x 2 = 6
  17. Ability of body to fight against a disease ______

  18. Process of production of blood cells in bone marrow ______

  19. Another word for tumors _______

  20. 1 x 1 = 1
  21. i. Agglutination Particulate antigen
    ii. Opsonin Phagocytosis
    iii. Precipitin soluble antigen
    iv. Neutralization auto antigens

    (a) ii only
    (b) iii and iv
    (c) iv only
    (d) i and ii 

  22. 3 x 2 = 6
  23. How does immune system work?

  24. Define acquired immunity.

  25. Mention the functions of immunoglobulins?

  26. 4 x 3 = 12
  27. Differentiate between:
    Humoral and CMI immunity

  28. Explain the structure of immunoglobulin with suitable diagram.

  29. Differentiate primary and secondary lymphoid organs with an example.

  30. What is agglutination?

  31. 2 x 5 = 10
  32. What is vaccine? What are its types?

  33. Write a note on different types of antigen antibody reactions.

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