Immunology Quiz Questions with correct answers.

Immunology Quiz Questions with correct answers
Which is correct?


A. The class II MHC molecules present microbial antigens that are recognized by CD8+T cells
B. The class II MHC molecules present microbial antigens that are recognized by CD4+T cells
C. The class I MHC molecules present microbial antigens that are recognized by CD4+T cells
D. The class I MHC molecules present microbial antigens that are recognized by B cells -
CORRECT ANSWER-B. The class II MHC molecules present microbial antigens that are
recognized by CD4+T cells


What is the role of the complement system?


A. To cause lysis of microbes
B. To cause inflammation
C. To opsonize microbes
D. All of the above - CORRECT ANSWER-D. All of the above


What is the function of the FAB region of an antibody?


A. Bind to receptors on macrophages
B. Bind to receptors on T cells
C. Bind to antigens
D. Determine the class/type of the antibody - CORRECT ANSWER-C. Bind to antigens


What is a typical monomeric antibody made of?


A. 1 heavy chain and 1 light chain
B. 2 heavy chains and 1 light chain
C. 2 heavy chains and 2 light chains
D.1 heavy chain and 2 light chains - CORRECT ANSWER-C. 2 heavy chains and 2 light chains

, Which of the following antibodies can serve both as a secreted antibody and as a B-cell
receptor?


A. IgG
B. IgA
C. IgM
D. IgE - CORRECT ANSWER-C. IgM


Which of the following antibodies is a mediator of the allergic response?


A. IgG
B. IgA
C. IgM
D. IgE - CORRECT ANSWER-D. IgE


Which of the following statements is correct?


A. TH1 subtype of T cells activates macrophages
B. TH1 subtype of T cells activates B cells to secrete IgE only
C. TH1 subtype of T cells activate B cells to secrete antibodies
D. a+b
E. a+c - CORRECT ANSWER-E. a+c


Which is the cytokine that causes the proliferation of T cells?


A. Interferon gamma
B. IL-1
C. IL-5
D. IL-2 - CORRECT ANSWER-D. IL-2


What is the type of T cell that secretes INF-gamma?