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Select the one best response to each question!
What type of cells would be found in a primary follicle?
| 1. Which of the following is a primary lymphoid organ? a. Lymph node b. Spleen c. Thymus d. MALT |
| 2. What type of cells would be found in a primary follicle? a. Unstimulated B cells b. Germinal centers c. Plasma cells d. Memory cells |
| 3. Which of the following is true of NK cells? a. They rely on memory for antigen recognition. b. They share antigens with B cells. c. They are found mainly in lymph nodes. d. They recognize a lack of MHC proteins. |
| 4. Where are all undifferentiated lymphocytes made? a. Bone marrow b. Thymus c. Spleen d. Lymph nodes |
| 5. In the thymus, positive selection of immature T cells is based upon recognition of which of the following? a. Self-antigens b. Stress proteins c. MHC antigens d. μ chains |
| 6. Which of these are found on a mature B cell? a. IgG and IgD b. IgM and IgD c. Alpha and beta chains d. CD3 |
| 7. Which receptor on T cells is responsible for rosetting with sheep red blood cells? a. CD2 b. CD3 c. CD4 d. CD8 |
| 8. Which of the following can be attributed to antigenstimulated T cells? a. Humoral response b. Plasma cells c. Cytokines d. Antibody |
| 9. Which is a distinguishing feature of a pre-B cell? a. μ chains in the cytoplasm b. Complete IgM on the surface c. Presence of CD21 antigen d. Presence of CD25 antigen |
| 10. When does genetic rearrangement for coding of light chains take place? a. Before the pre-B cell stage b. As the cell becomes an immature B cell c. Not until the cell becomes a mature B cell d. When the B cell becomes a plasma cell |
| 11. Which of the following antigens are found on the T cell subset known as helper/inducers? a. CD3 b CD4 c. CD8 d. CD11 |
| 12. Where does the major portion of antibody production occur? a. Peripheral blood b. Bone marrow c. Thymus d. Lymph nodes |
| 13. Which of the following would represent a doublenegative thymocyte? a. CD2–CD3CD4–CD8 b. CD2CD3–CD4–CD8– c. CD2–CD3CD4CD8– d. CD2CD3CD4CD8– |
| 14. Which of the following best describes the T-cell receptor for antigen? a. It consists of IgM and IgD molecules. b. It is the same for all T cells. c. It is present in the double-negative stage. d. Alpha and beta chains are unique for each antigen. |
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