A Lab Perspective Chapter 1 on Clinical Immunology & Serology Verified 100%.

1. Which of the following can be attributed to Pasteur? A) discovery of opsonins B) observation of phagocytosis C) first attenuated vaccines D) theory of humoral Immunity - correct answers C) first attenuated vaccines 10. What type of cells would be found in a primary follicle? A) unstimulated B cells B) germinal centers C) plasma cells D) memory cells - correct answers A) unstimulated B cells 11. Which of the following is a distinguishing feature of B cells? A) act as helper cells B) presence of surface antibody C) able to kill target cells without prior exposure D) active in phagocytosis - correct answers B) presence of surface antibody 12. Where do lymphocytes mainly come in contact with antigens? A) secondary lymphoid organ B) bloodstream C) bone marrow D) thymus - correct answers A) secondary lymphoid organ 13. Which of the following is found on the T cell subset known as helpers? A) CD19 B) CD4 C) CD8 D) CD56 - correct answers B) CD4 14. Which of the following statements best characterizes Adaptive Immunity? A) relies on normally present body functions B) response is similar for each exposure C) specificity for each individual pathogen D) involves only cellular Immunity - correct answers C) specificity for each individual pathogen