Monday, September 22, 2008

23 - immunoglobulins mcqs and faqs


1.
Ig that crosses the placenta ?

Answer: Ig G .

2. Ig present in milk ?

Answer: Ig G and Ig A

3. Ig in seromucinous glands ?

Answer: Ig G and Ig A

4. Ig in primary immune response ?

Answer: Ig M

5. Ig in secondary immune response ?

Answer: Ig G

6. Ig with maximum molecular weight ?

Answer: Ig M

7. Ig with maximum sedimentation rate ?

Answer: Ig M

8. Ig with minimum sedimentation coefficient ?

Answer: Ig G

9. Blood group antibodies belong to which type of immunoglobulins ?

answer: Ig M

10. Rheumatoid factor belongs to which type of immunoglobulins ?

answer: Ig M ( antibody against Fc fragment of Ig G )

11. Immunoglobulin that is heat labile ?

answer: Ig E .

12. Immunoglobulin mediating the prausnitz kustner reaction ?

Answer: Ig E

13. Ig appearing first in life ?

Answer: Ig M

14. homocytotropism is seen in which Ig ?

answer: Ig E .

15. Ig with maximum serum concentration ?

Answer: Ig G

16. Ig with minimum serum concentration ?

Answer: Ig E

17. Ig with longest half life ?

Answer: Ig G

18. Ig with shortest half life ?

Answer: Ig E

19. Ig with maximum synthesis per day ?

Answer: Ig A

20. Ig with minimum synthesis per day ?

Answer: Ig E

21. Ig responsible for hypersensitivity pneumonitis ?

Answer: Ig G

22. binary exposure to an antigen results in sudden increase in ?

answer: Ig G

23. Ig to fix complements via classical pathway ?

Answer: Ig G1 and Ig M

24. Ig to fix complements via alternate pathway ?

Answer: Ig A , Ig D , Ig G4

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