Practice test 2 for fall 2007

Practice test 2 for fall 2007 - Multiple Choice questions...

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Multiple Choice questions 1-35. 1. Which of the following complement proteins is responsible for opsonizing bacteria? a. C1/C4/C2 b. C3 c. MAC complex d. C3b e. C5b 2. Antigen presenting cells take up antigen and migrate a. Through the blood to the bone marrow to activate stem cell formation. b. Out of the tissue into the lymphatic system and lymph nodes. c. To the thymus to educate T cells. d. To the brain for processing. e. None of the above. 3. Which of the following roles is NOT the correct association? a. IgG-passive immunity b. IgG-complement fixation c. IgM- complement fixation d. IgE-ADCC e. IgE-complement fixation 4. The innate immune system is compromised when a. Chemicals present in body fluids destroy bacterial cell wall. b. Bacteria are opsonized and phagocytosized by PMNs. c. Antiviral proteins are induced by interferon. d. Membrane attack complexes punch holes in gram - cell walls. e. Commensal bacteria are eliminated by broad-spectrum antibiotics. 5. Which of the following would induce the strongest acquired immune response? a. A polysaccharide with repeating motifs binding to a B cell. b. A self protein presented on a liver cell. c. A killed whole virus. d. An attenuated virus. e. Human gamma globulin injections. 6. A 17 year old girl is admitted to the ER. She has a number of blood tests run and they find mainly IgM with a small amount of IgG antibodies specific for a blood borne pathogen. What does this mean? a. She has recently been infected with the pathogen. b. She has seroconverted. c. She is in the initial stages of a primary immune response. d. The next time she gets this infection she will make more IgG than IgM. e. All of the above. 1
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7. Which of the following would be true if you were type AB blood type? a. You would have anti-A antibodies in your blood. b. You would have anti-B antibodies in your blood. c. You could give blood to a person with Type A blood. d. You could receive a liver from a person with the O blood type. e. Both a and b. 8. A reaction to urushirol (the enzyme in poison ivy oil) is due to a. Cross linking of IgE on mast cells, triggering mediators of inflammation. b. Granulocytes diapedese to site of allergen. c. Activation of T cells and macrophages. d. Proteins in the oil binding to self proteins initiating an immune response. e. Both c and d. 9.
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This note was uploaded on 03/31/2008 for the course MCRO 255 taught by Professor Cramer during the Spring '08 term at UNC.

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Practice test 2 for fall 2007 - Multiple Choice questions...

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