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Immunity (Class XII)

Comprehensive coverage of immunity including complement system, autoimmune diseases, T-cells, macrophages, immunodeficiency disorders, and immune cell functions

15 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Which of the following complement components is/are activated during endotoxin inactivation?

  1. C1 to C9
  2. C1 to C5
  3. C1, C4, C2 and C3
  4. C5a
Question 2 Multiple Choice (Single Answer)

Inflammation of testes is seen in which of the following autoimmune diseases?

  1. Opsoclonus-myoclonus syndrome
  2. Oophoritis
  3. Orchitis
  4. Lichen sclerosus
Question 3 Multiple Choice (Single Answer)

Which of the following statements regarding peritoneal macrophages is true?

  1. They are fixed macrophages.
  2. They are wandering macrophages.
  3. They are found in the bones.
  4. They are killer cells.
Question 4 Multiple Choice (Single Answer)

Autoimmune polyendocrine syndrome type 1 is a genetic autoimmune disorder in which multiple endocrine glands dysfunction as a result of autoimmunity. It is also known as which of the following?

  1. Isaac's syndrome
  2. POEMS syndrome
  3. Whitaker syndrome
  4. Cogan's syndrome
Question 5 Multiple Choice (Single Answer)

Which of the following T-cells call in phagocytes to destroy microbes?

  1. Cytotoxic T-cells
  2. Regulatory T-cells
  3. Killer T-cells
  4. Memory T-cells
Question 6 Multiple Choice (Single Answer)

Which of the following cells differentiate into macrophages?

  1. Polymorphonuclear granulocytes
  2. Lysosomal cells
  3. Monocytes
  4. Kuffer cells
Question 7 Multiple Choice (Single Answer)

The regulatory proteins released by activated T-cells are known as

  1. histamines
  2. monokines
  3. lymphokines
  4. antibodies
Question 8 Multiple Choice (Single Answer)

Which of the following T-cells recognise the antigens coupled to class I MHC?

  1. Regulatory T-cells
  2. Helper T-cells
  3. Killer T-cells
  4. γδ T-cells
Question 9 Multiple Choice (Single Answer)

Cyclosporin is an immunosupressive drug. In which of the following ways does it produce its action?

  1. Killing activated T-cells
  2. Inhibition of signal transduction
  3. Inhibiting division of immune cells
  4. Inhibition of complement activation
Question 10 Multiple Choice (Single Answer)

Which of the following T-cells express the CD45RO protein on their surface?

  1. Helper T-cells
  2. Memory T-cells
  3. Cytotoxic T-cells
  4. Suppressor T-cells
Question 11 Multiple Choice (Single Answer)

Behcet's syndrome is an autoimmune disease. Which of the following body organs get(s) inflamed in it?

  1. Myelin sheath
  2. Small intestine
  3. Blood vessels
  4. Eyes
Question 12 Multiple Choice (Single Answer)

Which of the following conditions occurs in immunodeficiency disease X-linked agammaglobulinemia?

  1. Normal number of B-cells with decreased IgG and IgA and increased IgM
  2. B-cells are present but with reduction in 2 or more isotypes
  3. Complete lack of antibodies
  4. Selective immunoglobulin A deficiency
Question 13 Multiple Choice (Single Answer)

Autoimmune thrombocytopenic purpura (ITP) is characterised by

  1. an increase in platelet count
  2. a decrease in platelet count
  3. bone marrow abnormalities
  4. blister formation on the skin
Question 14 Multiple Choice (Single Answer)

Which of the following is not an action of adjuvants?

  1. They extend the presence of antigens in the blood.
  2. They activate macrophages and lymphocytes.
  3. They accelerate the division of immune cells.
  4. They support the production of cytokines.
Question 15 Multiple Choice (Single Answer)

Match the columns.

 
Phagocyte Function
1. NK cells a. Present antigens
2. Dendritic cells b. Anaphylaxis
3. Mast cells c. Attack and destroy tumor cells
4. Macrophages d. Scavengers

  1. | ||
    |---|---|
    |1. NK cells|d. Scavengers|
    |2. Dendritic cells|c. Attack and destroy tumor cells|
    |3. Mast cells|a. Present antigens|
    |4. Macrophages|b. Anaphylaxis|

  2. | ||
    |---|---|
    |1. NK cells|c. Attack and destroy tumor cells|
    |2. Dendritic cells|a. Present antigens|
    |3. Mast cells|b. Anaphylaxis|
    |4. Macrophages|d. Scavengers|

  3. | ||
    |---|---|
    |1. NK cells|b. Anaphylaxis|
    |2. Dendritic cells|d. Scavengers|
    |3. Mast cells|a. Present antigens|
    |4. Macrophages|c. Attack and destroy tumor cells|

  4. | ||
    |---|---|
    |1. NK cells|d. Scavengers|
    |2. Dendritic cells|b. Anaphylaxis|
    |3. Mast cells|c. Attack and destroy tumor cells|
    |4. Macrophages|a. Present antigens|
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