Bio101 Exam 3 41. Autoimmunity occurs when... A. An individual\'s immune system
ID: 281771 • Letter: B
Question
Bio101 Exam 3 41. Autoimmunity occurs when... A. An individual's immune system responds inappropriately to the individual's own cells and tissues B. An individual's immune system mistakes "self " for "non-self." C. An individual's immune system responds inappropriately pathogens. D. A and B All of the Above E. 42. Which white blood cell does NOT poke holes and lyse infected cells as their killing mechanism? A. B. C. D. Tcell Macrophage Natural Killer Cell All of the above poke holes and lyse infected cells as their killing mechanism 43. Which answer describes the action of antibodies upon exposure to the influenza virus? A. Antibodies could bind to the viral antigens to help phagocytes find it. B. Antibodies could bind to the viral antigens and form large clumps of virus that phagocytes could ingest. C. Antibodies could bond to viral antigens and prevent the virus from entering ce D. 1 and 2 E. All of the above.Explanation / Answer
41.D. Autoimmunity occura when an individual's immune system does not distinguish between self and non self cells and responds inappropriately to own cells and tissues.
42. B. Macrophages are the white blood cells which act by engulfing the infected cells. The process is called phagocytosis.
43.E. Antibodies bind to viral antigens so that the phagocytes could recognize and kill them and form large clumps of virus that phagocytes could digest as well as they block the entry of virus into the cell.
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