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What are three mechanisms pathogens use to block the immune system?
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- what are pathogen?The correct order of words to describe how innate immune response responds to a pathogen that has gotten by the physical and chemical barriers is: À) Skin, Saliva, Cytokines, Macrophage B)Macrophage, Cytokines, Neutrophil, Natural Killer Cell C) Neutrophil, Cytokines, Killer T Cell, Antibodies D) Antigen, Macrophage, B Cell, Killer T CellWhat is the difference between nonspecific host defenses and immuneresponses?
- Which form of acquired immunity is the patient developing by having this infection? A) Active natural immunity B) Passive natural immunity C) Active artificial immunity D) Passive artificial immunityHow does a latent infection differ from a chronic infection?Helper T cells: A) produce antibodies B) can act as memory cells C) initiate both the cell mediated response and the humoral response D) all of the above
- Define pathogen.What is the expected result if a compromised person is exposed to a true pathogen?Part of the complement system of defense is opsonization. This process A.) creates an acidic environment that prevents pathogen attachment B.) causes holes to form in the pathogen's cell walls. C.) coats the pathogen exterior so that it is recognized by the host's phagocytes. D.) causes the pathogen to become trapped in mucus.
- What major events take place during an inflammatory reaction, and how do they contribute to pathogen destruction?Both antibodies and particular complement proteins, such as c3b, are capable of aiding phagocytes in attaching to bacteria. What term best describes these? O 1) opsonins O 2) haptens O 3) pyogens O 4) perforinsSelect all of the following that are functions performed by different antibodies. a) Group of answer choices b) Attracting natural killer cells to destroy an infected cell. c) Blocking the ability of a pathogen to bind to a host cell d) Lysing a pathogen cell wall or lipid bilayer. e) Marking a pathogen so that innate immune cells destroy the pathogen. f) Helping complement proteins bind to a pathogen.