EBK HUMAN BIOLOGY
11th Edition
ISBN: 8220100545931
Author: MCMILLAN
Publisher: Cengage Learning US
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Textbook Question
Chapter 9, Problem 6SQ
Cell-mediated responses work best against ________.
- a. pathogens inside cells
- b. pathogens outside cells
- c. toxins
- d. both b and c
- e. all are correct
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The first cell to initiate an adaptive immune response to a novel pathogen is _____.
A. an antigen presenting cell such as a neutrophil or macrophage
B. a helper T cell in the lymph nodes
C. a B cell that binds a pathogen at the site of infection
D. a memory cell that is activated directly by the pathogen
The type of cell responsible for the secondary response is a_________.
Select one:
a. mast cell
b. monocyte
c. memory cell
d. red blood cell
e. macrophage
Enhanced phagocytosis of a cell by the binding of aspecific protein is called ________.a. endocytosisb. opsonizationc. anaphylaxisd. complement activation
Chapter 9 Solutions
EBK HUMAN BIOLOGY
Ch. 9 - Prob. 1RQCh. 9 - Distinguish between a. neutrophil and macrophage...Ch. 9 - What is the difference between innate immunity and...Ch. 9 - What is the difference between an allergy and an...Ch. 9 - ______ are barriers to pathogens at body surfaces....Ch. 9 - Complement proteins function in defense by...Ch. 9 - Prob. 3SQCh. 9 - Prob. 4SQCh. 9 - Antibody-mediated responses work best against...Ch. 9 - Cell-mediated responses work best against...
Ch. 9 - The most common antigens are __________. a....Ch. 9 - The ability to develop a secondary immune response...Ch. 9 - Tears are part of the bodys defensive arsenal....Ch. 9 - Match the immunity concepts: __________...Ch. 9 - New research suggests a link between some microbes...Ch. 9 - Given what you now know about how foreign invaders...Ch. 9 - Researchers have been trying to develop a way to...Ch. 9 - Prob. 4CTCh. 9 - Prob. 5CT
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- Explain Which Enhanced phagocytosis of a cell by the binding of a specific protein is called ________. a. endocytosis b. opsonization c. anaphylaxis d. complement activationarrow_forwardWhich of the following doesn't occur in the inflammatory response? O A. Decreased vascular permeability B. Extravasation of leukocytes into inflammed tissue C. Endothelial cell activation D. Tissue injury repair O E. Local blood clottingarrow_forwardare cytolytic proteins that binds to target cell's plasma membrane to form pores. a. Chemokines b. Perforins c. Cytotoxicity d. Interferonsarrow_forward
- Interferon alpha and beta are released by virally infected cells to warn nearby cells about the virus and try to prevent spread. This is an example of _____ signalling. A. Autocrine B. Endocrine C. Paracrine D. Exocrinearrow_forwardMolecular mimicry is when ____ on host cells resemble _____ on pathogens causing host to mount an immune response to host tissues.(same word for both blanks) a. Immunoglobulins b. Antibodies c. Antigensarrow_forwardWhich of these pairs are mismatched? a. cytosol: intracellular pathogen b. surface of epithelium: extracellular pathogen c. nucleus: intracellular pathogen d. lymph: intracellular pathogenarrow_forward
- The early events of inflammation are characterized by all of the following except _____. a. vasodilation b. extravasation c. pain d. apoptosis e. increased vascular permeability f. chemotaxis.arrow_forwardToll-like receptors (TLRS) act to A. cause phagocytic chemotaxis. B. induce phagocytosis. C. bind microbial proteins and polysaccharides. D. destroy microbial cells. You may select zero, one, or many answers.arrow_forwardAn example of the immune system's first line of defense involves B-cells producing antibodies a. b. Macrophages engulfing bacteria O C. killer T-cells destroying the cell membrane of bacteria O d. Stomach acid destroying bacteria in food Oarrow_forward
- A signaling molecule from microbes recognized by phagocytes isa. pyrogen b. PAMP c. complement d. lectinarrow_forwardMicrobial products trigger macrophage activation. Match the receptor with the product that it binds. ✓ TLR-4 ✓ TLR-3 ✓ TLR-9 TLR-5 A. Unmethylated DNA B. Double-stranded RNA C. LPS D. Flagellaarrow_forwardWhich of the following statements is _false_ regarding phagocytosis? A. It can ingest large particles. B. It involves the projection of pseudopods. C. It is used by amoebae to ingest food. D. It is mediated by clathrin at the plasma membrane. E. It is used by macrophages and neutrophils to ingest bacteriaarrow_forward
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