Immunology Exam 1 Multiple Choice Questions With Complete Solutions

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 answer: c Which WBC is capable of further differentiation in tissues? a. Neutrophil b. Eosinophil c. Basophil d. Monocyte correct answer: d The cells that Metchnikoff first observed are associated with which phenomenon? a. Innate immunity b. Adaptive immunity c. Humoral immunity d. Specific immunity correct answer: a Where are all undifferentiated lymphocytes made? a. Bone marrow b. Spleen c. Thymus d. Lymph nodes correct answer: a Which of the following statements is true of NK cells? a. They rely upon memory for antigen recognition. b. They have the same CD groups as B cells. c. They are found mainly in lymph nodes. d. They kill target cells without prior exposure to them. correct answer: d Which cell is the most potent phagocytic cell in the tissue? a. Neutrophil b. Dendritic cell c. Eosinophil d. Basophil correct answer: b The ability of an individual to resist infection by means of normally present body functions is called