Immunology Multiple Choice Questions MCQs with Answers 1. Antibodies disappear very quickly in which immunity? a. Active immu...
Immunology Multiple Choice Questions MCQs with Answers
1. Antibodies disappear very quickly in which immunity?
a. Active immunity
b. Naturally induced immunity
c. Passive immunity
d. Autoimmune response
Answer: c. Passive immunity
2. Which Portion of antibody structure is occupied by the variable chain?
a. Lower region
b. In between chain
c. Upper region
d. Middle region
Answer: c. Upper region
3. What kind of defense barrier is provided by the mucous membrane of the body?
a. Physical barrier
b. Mechanical barrier
c. Chemical barrier
d. Biological barrier
Answer: a. Physical barrier
4. How many kinds of antibodies are there?
a. Two
b. Four
c. Five
d. Six
Answer: c. Five
5. B lymphocytes are related to:
a. Bursa Fabricius
b. Thymus gland
c. Bacteria
d. None of these
Answer: a. Bursa Fabricius
6. T cells or T lymphocytes are produced by the…?
a. Bone marrow
b. Thymus gland
c. Spleen
d. Liver
Answer: b. Thymus gland
7. What is the most predominant immunoglobulin in the plasma?
a. Iga
b. IgG
c. IgM
d. IgE
Answer: b. IgG
8. Which of the following produces monoclonal antibodies?
a. Fermentation
b. Hybridoma technology
c. Genetic engineering
d. None of these
Answer: b. Hybridoma technology
9. Which of the following IgG is targeted against Polysaccharides of encapsulated bacteria?
a. IgG1
b. IgG2
c. IgG3
d. IgG4
Answer: b. IgG2
10. Which of the following is serum hepatitis?
a. HBV
b. HCV
c. HAV
d. HIV
Answer: a. HBV
11. Antigen binding site on Immunoglobulin is located in…?
a. Light chain
b. Fc region of antibody
c. Heavy chain
d. Fab region of antibody
Answer: d. Fab region of antibody
12. Immunity in which Lymocytes recognizes the antigen and micro-organisms is known as:
a. Phagocytosis
b. Cell-mediated immunity
c. Tissue grafting
d. Humoral immunity
Answer: b. Cell-mediated immunity
13. Which of the following immunoglobulin is predominant in secondary responses?
a. IgA
b. IgG
c. IgM
d. IgE
Answer: b. IgG
14. Which is the smallest molecular weight immunoglobulin?
a. IgA
b. IgG
c. IgM
d. IgE
Answer: b. IgG
15. Antibodies clear out antigens by:
a. Neutralization
b. Precipitation
c. Agglutination
d. All of these
Answer: d. All of these
16. A very important branch of the medical and biological sciences that deals with the study of the immune system and is called:
a. Zoology
b. Biotechnology
c. Microbiology
d. Immunology
Answer: d. Immunology
17. Which of the following immunity is developed over your lifetime?
a. Active immunity
b. Acquired immunity
c. Passive immunity
d. Autoimmunity
Answer: b. Acquired immunity
18. Cell-mediated immunity is primarily driven by which of the following cells?
a. B Cells
b. T Cells
c. Mast cells
d. Thrombocytes
Answer: b. T Cells
19. Choose the correct statements about the IgM of humans?
a. IgM is primarily restricted in the circulation
b. IgM is produced by high-affinity plasma cells
c. IgM can protect the mucosal surface
d. IgM can cross the placenta
Answer: a. IgM is primarily restricted in the circulation
20. Choose the correct statements about interferons?
a. A type of Physical barrier
b. A type of Cellular barrier
c. A type of Physiological barrier
d. A type of Cytokine barrier
Answer:
21. Which of the following cells of the immune system do not perform phagocytosis??
a. Basophil
b. Eosinophil
c. Neutrophil
d. Macrophage
Answer: a. Basophil
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