Microbiology With Diseases By Taxonomy (6th Edition)
6th Edition
ISBN: 9780134832302
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 15, Problem 4MC
Summary Introduction
Introduction:
The “alternative complement pathway” of the complement system is an “innate component” of the “immune system” is a defense against infections. The alternative pathway is one of “three complement pathways” that kill pathogens.
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A(n) _____ is an inactive form of an enzyme that frequently participates in a cascade of enzymatic reactions during complement activation.
a. regulator of complement activation
b. convertase
c. complement control protein module
d. zymogen
e. opsonin.
All of the following are true of some or all complement proteins except _____.
a. they are soluble and bind to pathogen surfaces
b. they participate only in innate immunity
c. they are present in extracellular fluids, blood, and lymph
d. they facilitate the phagocytosis of pathogens
e. they are made as zymogens.
Enhanced phagocytosis of a cell by the binding of aspecific protein is called ________.a. endocytosisb. opsonizationc. anaphylaxisd. complement activation
Chapter 15 Solutions
Microbiology With Diseases By Taxonomy (6th Edition)
Ch. 15 - Prob. 1TMWCh. 15 - Prob. 3TMWCh. 15 - Prob. 1CCSCh. 15 - Prob. 2CCSCh. 15 - Phagocytes of the epidermis are called _________....Ch. 15 - Prob. 2MCCh. 15 - Prob. 3MCCh. 15 - Prob. 4MCCh. 15 - Prob. 5MCCh. 15 - Prob. 6MC
Ch. 15 - Interferons ________. a. do not protect the cell...Ch. 15 - Prob. 8MCCh. 15 - Toll-like receptors (TLRs) act to ________. a....Ch. 15 - Prob. 10MCCh. 15 - Prob. 1MTFCh. 15 - Prob. 2MTFCh. 15 - Prob. 3MTFCh. 15 - Prob. 4MTFCh. 15 - Prob. 5MTFCh. 15 - Prob. 6MTFCh. 15 - Prob. 7MTFCh. 15 - Prob. 8MTFCh. 15 - Prob. 9MTFCh. 15 - Prob. 10MTFCh. 15 - Prob. 11MTFCh. 15 - Prob. 12MTFCh. 15 - Prob. 13MTFCh. 15 - Prob. 14MTFCh. 15 - Prob. 15MTFCh. 15 - In the blank beside each cell, chemical, or...Ch. 15 - Prob. 2MCh. 15 - Prob. 1SACh. 15 - How does a phagocyte know it is in contact with a...Ch. 15 - Prob. 3SACh. 15 - Prob. 4SACh. 15 - Prob. 5SACh. 15 - Prob. 6SACh. 15 - Label the steps of phagocytosis.Ch. 15 - Prob. 2VICh. 15 - Prob. 1CTCh. 15 - What might happen to someone whose body did not...Ch. 15 - Prob. 3CTCh. 15 - Prob. 4CTCh. 15 - There are two kinds of agranulocytes in the...Ch. 15 - A patient has a genetic disorder that prevents him...Ch. 15 - Prob. 7CTCh. 15 - Prob. 8CTCh. 15 - Prob. 9CTCh. 15 - Prob. 10CTCh. 15 - Prob. 11CTCh. 15 - A patient has a genetic disorder that makes it...Ch. 15 - Prob. 13CTCh. 15 - Prob. 14CTCh. 15 - Prob. 1CM
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- Which of the following does not describe the outcome of complement activation? a. chemotaxis b. opsonization c. vasoconstriction d. proteolysis e. membrane permeabilization.arrow_forwardThe primary role of complement control proteins that operate in the early stages of complement activation is to _____. a. regulate the expression of complement proteins b. ensure that the components of the membrane-attack complex assemble in the correct sequence c. facilitate the secretion of complement proteins to extracellular locations d. stabilize complement proteins, thus extending their half-lives in serum e. ensure that C3b is deposited on appropriate surfaces.arrow_forwardWhich of these statements about complement proteins C3a and C5a is false?a. They are released during the complement fixation process.b. They stimulate chemotaxis of phagocytic cells.c. They promote the activity of phagocytic cells.d.They produce pores in the victim plasma membrane.arrow_forward
- The following events occur in humoral immunity, leading to an activated B cell in a T dependent manner. Of the steps listed below, which would be step number 5 in the process. Hint: only include these steps in the numbering...order the steps and select which one is #5 A. secretion of cytokines by Th B. Receptor mediated endocytosis C. B cell receptors recognize and bind to an antigen D. Recognition by Th E. Digestion and processing of the antigen by the B cell F. Display of the antigen along with MHC proteinsarrow_forwardmatch the cytokine with its description. 1.Interleukin-1 2.Interleukin-2 3.Interleukin-12 a. Stimulates formation of TH1 helper T lymphocytes b. Stimulates ACTH secretion c.Stimulates proliferation of cytotoxic T lymphocytes d.Stimulates proliferation of B lymphocytesarrow_forwardWhich pathway of complement activation acts in conjunction with the action of antibodies? A. the lectin pathway В. the alternative pathway C. the classical pathway D. the attack pathwayarrow_forward
- Shigella, Mycobacterium, and numerous other pathogens have developedmechanisms that prevent them from being killed by phagocytes.a. Suggest two or three factors that help them avoid destruction bythe powerful antiseptics in macrophages.b. Suggest the potential implications that these infected macrophagescan have on the development of disease.arrow_forwardWhich pertains to the immune response of a woman who has just inhaled a coronavirus to which she has no immunity. A.an immune response will begin once the antigen enters lymphoid tissues as the lymph nodes B. IgA directed toward this coronavirus will be immediately present in respiratory secretions C. each Ab produced against an epitope of the coronavirus will have identical binding sites D. only B lymphocytes will be capable of responding to the coronavirus E. only IgM will be produced in the initial response.arrow_forwardWhich of the following does not accurately describe complement components? A. made by the spleen B. located in extracellular spaces C. some function as proteases once activated D. activated by a cascade of enzymatic reactions. E. soluble proteinsarrow_forward
- Match the barrier defense organ with its defense mechanisms A. vagina B. trachea and bronchi C. skin D. stomach E. mouth select A B C D E 1. villi pushing material outward select A B C D E 2. igA dimers in the saliva select A B C D E 3. low pH, antibodies, and secretions select A B C D E 4. keratinized epithelium and sweat glands select A B C D E 5. extremely low pH and digestive enzymesarrow_forwardThe T lymphocytes as macrophages, secrete a number of polypeptides (cytokines) generally called lymphokines that serve as autocrine regulators of the immune system.a. Identify any five (5) lymphokines and explain their functions.b. Briefly state a function for each of the following immune cells. Monocytes Mast Cells B Lymphocytes Cytotoxic, T Lymphocytes Helper T Lymphocytesarrow_forwardDeficiencies in complement components C1–C4 are associated with _____. a. neutropenia b. chronic granulomatous disease c. immune-complex disease d. opportunistic infections e. leukocytosis.arrow_forward
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