Which of the following is an example of cross-presentation? ____
An endogenous peptide being presented on MHC class I
B. An exogenous peptide being presented on MHC class I
C. An endogenous peptide being presented on MHC class II
D. An exogenous peptide being presented on MHC class II
E. A B-cell antigen being presented to a T cell
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Which of the following represents the earliest stage in T-cell development? ____
A. DP
B. DN
C. SP-CD4
D. SP-CD8
E. Mature T cell
For pathogen peptides to be seen as foreign, they must be displayed on a T cell in the context of a/an: ____
A. B-cell marker
B. CD molecule
C. IgM molecule
D. MHC peptide
E. pattern-recognition receptor molecule
A naïve T cell refers to a T cell that: ____
A. does not express CD4+ or CD8+
B. has not left the bone marrow
C. has not yet encountered an antigen
D. is not mature
E. resides in the thymus
The role of cell-mediated immunity is: ____
A. to eliminate the outercellular pathogens
B. to find and eliminate cells infected with intracellular pathogens
C. to present antigens to TH cells
D. to produce memory B cells
E. to secrete antibodies
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