MICROBIOLOGY W/ACCESS
4th Edition
ISBN: 9781266808685
Author: Cowan
Publisher: MCG
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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 third line of defense includes: a. inflammation b. stomach’s digestive acid c. phagocytes d. MHC proteins
which one of the following properties of antibodies is NOT dependant on the structure of the heavy-chain constant region?
A. ability to cross the placenta
B. isotype (class of antibody)
C. ability to fix complement
D. affinity for drug
Which of the following best represents a second line of defense:
a. Both A and C
b. Fever
c. Inflammation
d. Mechanical barriers
Chapter 14 Solutions
MICROBIOLOGY W/ACCESS
Ch. 14.1 - Summarize the three lines of host defenses.Ch. 14.1 - Prob. 2AYPCh. 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. 14.3 - Prob. 2CFCh. 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 - Prob. 16AYPCh. 14 - Prob. 1CFCh. 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 - Prob. 4CTQCh. 14 - Prob. 5CTQCh. 14 - Prob. 6CTQCh. 14 - Prob. 7CTQCh. 14 - a. Inflammation is characterized by heat, pain,...Ch. 14 - Prob. 9CTQCh. 14 - HIV predominantly infects T helper cells, cells...Ch. 14 - Prob. 1CCCh. 14 - Prob. 2CCCh. 14 - Prob. 3CCCh. 14 - Prob. 4CCCh. 14 - Prob. 1VCCh. 14 - Prob. 1CM
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- Which 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_forwardWhich of the following is part of the second line of defense? a. Interferons b. Phagocytes c. Macrophages and histiocytes d. Inflammatory reactions e. Fever f. Complements Please provide answer in short asap!!arrow_forwardWhich of the following does not describe the outcome of complement activation? a. chemotaxis b. opsonization c. vasoconstriction d. proteolysis e. membrane permeabilization.arrow_forward
- Jim has been diagnosed with meningococcal disease. His family has been started on an antibiotic to prevent them contracting the disease. This is an example of a. infection. b. prophylaxis. c. antimicrobial resistance. d. host defense.arrow_forwardChoose 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 pathwayarrow_forwardChoose the combination of answers that most accurately completes the statement. An example of an exogenous pyrogen is a. interleukin-1 c. interferon b. complement d. endotoxinarrow_forward
- Choose the combination of answers that most accurately completes the statement. Which of the following is the end product of the complement system? a. properdin b. cascade reaction c. membrane attack complex d. complement factor C9arrow_forwardImmunoglobins 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 plateletsarrow_forwardSuppose a person recovers normally from viral infections, but then gets the same viral infections over and over again- unlike the rest of us. A. What is probably wrong –B cells, helper T cells and/or cytotoxic T cells? B. Should this person be at a higher risk of cancer than the rest of us? C. Should this person be able to lyse bacterial cells as well as the rest of us? D. Should this person tolerate a graft (from an unreated person) better than you are me?arrow_forward
- are cytolytic proteins that binds to target cell's plasma membrane to form pores. a. Chemokines b. Perforins c. Cytotoxicity d. Interferonsarrow_forwardExplain why each choice (a-d) is correct or incorrect. Allergens differ from antigens because a. Allergens produce an abnormally large immune response to what is an otherwise harmless particle. b. Allergens do not involve the leucocytes, they simple stimulate the inflammatory response. c. Allergens are only active seasonally and are generally harmless to the body. d. Allergens are primarily plant derived while antigens are bacterial or viral in nature.arrow_forwardA child falls and receives a deep cut on her leg that went through her skin and is bleeding. Which of the following defense mechanisms will participate in eliminating contaminating microbes? A. ciliary escalator B. normal skin flora C. phagocytosis in the inflammatory response D. Iysozymearrow_forward
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