Question 1
Which of the following is an exogenous antigen?
◦ a bacterium inside a cell
◦ a noninfected human cell
◦ the malaria parasite inside a red blood cell
◦ a bacterium outside a cell
◦ a virus inside a cell
Question 2
Which of the following statements about lymphocytes is FALSE?
◦ Once they are mature, they migrate to secondary lymphoid organs.
◦ The glycoproteins on the surface of a lymphocyte are designated with the prefix CD, for "cluster of differentiation."
◦ Lymphocytes have different types of CD molecules in their cytoplasmic membranes.
◦ B and T lymphocytes can be differentiated using a bright-field light microscope.
◦ Lymphocytes have integral surface proteins by which they can be recognized.
Classes of lymphocytes
The Sun in false-color ultraviolet image
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Examples of Mission Statements
Lymphocytes Migrating through Membranes