Microbiology: A Systems Approach
5th Edition
ISBN: 9781259706615
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 14, Problem 8MCQ
Summary Introduction
Introduction:
Host has developed three line defense systems in which some are innate and nonspecific and some are acquired and specific. The nonspecific host defense system is protecting the host from all pathogen, whereas specific host defense system protects the host from specific pathogens. The three lines of defense system are first line, second line, and third line of defense system.
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The complement system of defense is composed of proteins that are always present in the blood. Which statement describes the importance of this system in early pathogen defense?
A.) It does not have to be activated by antibodies.
B.) It rapidly lower the blood pH.
C.) It recognizes specific common pathogens.
D.) It causes immediate pathogen lysis.
Immunoglobins help eliminate the pathogen through the process of:
A. Release of hydrolytic enzymes on the pathogen
B. Agglutination and precipitation
C. Direct phagocytosis
D. Activating platelets
Choose the combination of answers that most accurately completes the statement. In what process is tumor necrosis factor (TNF) not involved? a. chemotaxis of phagocytes b. fever c. the infl ammatory response d. the classic complement pathway
Chapter 14 Solutions
Microbiology: A Systems Approach
Ch. 14.1 - Summarize the three lines of host defenses.Ch. 14.1 - Identify two components of the first line of...Ch. 14.1 - Discuss the role of normal biota as a first-line...Ch. 14.2 - Define marker, and discuss its importance in the...Ch. 14.3 - Prob. 5AYPCh. 14.3 - List the components of the mononuclear phagocyte...Ch. 14.3 - Prob. 7AYPCh. 14.3 - Prob. 8AYPCh. 14.3 - Name six types of blood cells that function in...Ch. 14.3 - Prob. 10AYP
Ch. 14.4 - List the four major categories of nonspecific...Ch. 14.4 - Summarize the steps in phagocytosis, and describe...Ch. 14.4 - Outline the steps in inflammation.Ch. 14.4 - Discuss the mechanism of fever and its role in...Ch. 14.4 - Compare and contrast the three different...Ch. 14.4 - Name three types of antimicrobial proteins.Ch. 14 - Ail example of a nonspecific chemical barrier to...Ch. 14 - Which nonspecific host defense is associated with...Ch. 14 - Prob. 3MCQCh. 14 - Which of the following is not a lymphoid tissue?...Ch. 14 - Prob. 5MCQCh. 14 - Prob. 6MCQCh. 14 - Prob. 7MCQCh. 14 - Prob. 8MCQCh. 14 - Which of the following substances is/are not...Ch. 14 - Which of the following is the end product of the...Ch. 14 - The liquid component of clotted blood is called...Ch. 14 - Prob. 12TFCh. 14 - Prob. 13TFCh. 14 - Prob. 14TFCh. 14 - Prob. 15TFCh. 14 - Prob. 1CTQCh. 14 - Prob. 2CTQCh. 14 - Prob. 3CTQCh. 14 - a. Inflammation is characterized by heat, pain,...Ch. 14 - HIV predominantly infects T helper cells, cells...Ch. 14 - Prob. 1VCCh. 14 - Prob. 1CM
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- Which of the following statements is true about the IL-1 family of cytokines? A. They are powerful activators of inflammation b. They are chemotaxis mediators. c. Directly stimulate the growth of immune system cells in the bone marrow d. They are mainly mediators of the antiviral responsearrow_forwardWhich DOES NOT describe monoclonal antibodies? Group of answer choices a. Monoclonal antibodies are produced in test tubes by hybridoma cells b. Monoclonal antibodies are specific to multiple antigens c. These antibodies are used in diagnostic tests d. The antibody producing cells may come from a non-human sourcearrow_forwardPart 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.arrow_forward
- What is the first step in the antigen-antibody interaction? A.) opsonization B.) epitope production C.) neutralization D.) agglutinationarrow_forwardTwo of the major actions of complement are a. increased inflammatory response and cytolysis. b. recognition and destruction of a specific antigen and cytolysis. c. production of antibody and increased inflammatory response. d. release of cytokines to increase the immune response and production of antibody.arrow_forwardWhich of the following is NOT a way that an antibody can destroy a bacterial cell? a. Agglutination b. Lysis via complement fixation c. Lysis via opsonization d. Direct lysisarrow_forward
- 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 immunityarrow_forwardType of specific resistance that has been introduced to the body is already antibodies that provide immediate protection against microorganism. Choose the correct answer: A. Natural immunity B. Active immunization C. Acquired immunity D. Passive immunizationarrow_forwardWhat is the first step in the antigen-antibody interaction? A.) opsonization B.) epitope production C.) neutralization D.) phagocytosis E.) agglutinationarrow_forward
- The fact that the body does not normally mount an immune response to the molecules in food is an example of _______ . a. secondary immune response b. immunological memory c. immune tolerance d. passive immunityarrow_forwardComplement proteins function in defense by _______. a. neutralizing toxins b. enhancing resident bacteria c. promoting inflammation d. forming pores that cause pathogens to disintegrate e. both a and b f. both c and darrow_forwardA dendritic cell engulfs a bacterium, then presents bacterial bits on its surface along with an _______. a. MHC marker c. T cell receptor b. antibody d. antigenarrow_forward
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