25. Which immunoglobulin is dominant for protecting mucosal surfaces? a. IgA b.
ID: 241032 • Letter: 2
Question
25. Which immunoglobulin is dominant for protecting mucosal surfaces? a. IgA b. IgD c. IgE d. IgG e. IgM 26. The four subclasses of IgG differ in their heavy chain, constant region epitopes heavy chain, variable region variable chain a. b. c. d. 27. IgA works by a. Opsonization b. Activating complement c. Inducing inflammation d. Neutralization 28. Compared to the primary response, the secondary response (immunologic memory) is a. less sensitive b. more easily activated c. less abundant for any specific antigen d. facilitated by memory B cells-there are no memory T cellsExplanation / Answer
25 - A ) IgA is the correct answe because it is majorly present mucosal surface.
26 - A) Heavy chain constant region is the correct answer.
27 - D) Neutralization is the correct answer.
28 -B) more easily activated is the correct answer.