The place where immune response to antigen in blood take place ()
Appendix
B. Tonsil
C. Bursa Fabricii
D. Lymph node
E. Spleen
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Lymphocytes include ()
A. DC
B. Mast cell
C. T cell
D. APC
E. Macrophage
Penicillin is a small molecule that does not induce immune response. However, penicillin binds to serum proteins that induces an allergic reaction. Penicillin is therefore ()
A. an antigen
B. a hapten
C. an immunogen
D. both an antigen and a hapten
E. both an antigen and an immunogen
What kind of Ig can pass placenta ()
A. IgG
B. IgA
C. IgM
D. IgD
E. IgE
According to what can Ig be divided into 5 classes ()
A. H and L chains are all different
B. V regions are different
C. L chains are different
D. H chains are different
E. CL