Microbiology: An Evolving Science (Fourth Edition)
4th Edition
ISBN: 9780393615098
Author: John W. Foster, Joan L. Slonczewski
Publisher: W. W. Norton & Company
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Chapter 23.6, Problem 1TQ
Summary Introduction
To review:
The advantage of the H factor in bacteria.
Introduction:
The series of 20 proteins naturally found in serum form the complement. The complement pathway is the cascade process that attacks foreign invaders by enhancing the effect of antibodies. The complement system induces pores in the bacterial membrane leading to cytoplasmic leakage. Sometimes the pathogen can take advantage of these controls to avoid being destroyed by the immune system of the human body.
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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 C9
in a diagram put the cells that would first respond to a skin infection, and how the bacteria would escape the innate immune system and turn into a systemic infection and what cells would strath responding after the innate immune system fails
Part of the complement system of defense is opsonization. This process
Group of answer choices
creates an acidic environment that prevents pathogen attachment
coats the pathogen exterior so that it is recognized by the host's phagocytes.
causes the pathogen to become trapped in mucus.
causes holes to form in the pathogen's cell walls.
Chapter 23 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 23.1 - Prob. 1TQCh. 23.1 - Prob. 2TQCh. 23.1 - Prob. 3TQCh. 23.3 - Prob. 1TQCh. 23.4 - Prob. 1TQCh. 23.5 - Prob. 1TQCh. 23.5 - Prob. 2TQCh. 23.5 - Prob. 3TQCh. 23.6 - Prob. 1TQCh. 23.6 - Prob. 2TQ
Ch. 23 - Prob. 1RQCh. 23 - Prob. 2RQCh. 23 - Prob. 3RQCh. 23 - Prob. 4RQCh. 23 - Prob. 5RQCh. 23 - Prob. 6RQCh. 23 - Prob. 7RQCh. 23 - Prob. 8RQCh. 23 - Prob. 9RQCh. 23 - Prob. 10RQCh. 23 - Prob. 11RQCh. 23 - Prob. 12RQCh. 23 - Prob. 13RQCh. 23 - Prob. 14RQCh. 23 - Prob. 15RQCh. 23 - Prob. 16RQCh. 23 - Prob. 17RQCh. 23 - Prob. 18RQCh. 23 - Prob. 1TQCh. 23 - Prob. 2TQCh. 23 - Prob. 3TQ
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- The Complement System Kills Microorganisms The complement system supplements the inflammatory response by directly killing microorganisms. Describe the life cycle of complement proteins, from their synthesis in the liver to their activity at the site of an infection.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_forwardPart of the complement system of defense is opsonization. This process coats the pathogen exterior so that it is recognized by the host's phagocytes. creates an acidic environment that prevents pathogen attachment causes holes to form in the pathogen's cell walls. causes the pathogen to become trapped in mucus.arrow_forward
- Which 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_forwardWhich of these innate defenses would be most inhibited by antibiotic use? Group of answer choices Mucus Normal microbiota Fever Complement activationarrow_forwardComplement could be one example of a ?????, one of the three types of defenses employed by the innate immune system.arrow_forward
- Adaptive immunity includes which of the following processes? Question 2 options: A) phagocytosis B) inflammation C) production of antibody D) production of interferonarrow_forwardThe primary function of the immune system is to protect the host from invasion by foreign organisms. But how does the immune system prevent itself from mounting attacks against its host? In other words, how does the immune system distinguish between self and nonself?arrow_forwardWhich pathway of complement activation is depicted in this figure?arrow_forward
- suppose than individual's arm is cut, and because of this injury, bacteria are able to gain entry to the body and cause disease. What type of defense has been breached (overcome)?arrow_forwardWhat is the function of mucus in preventing infections? Group of answer choices To stimulate the complement system when pathogens are present To trap pathogens so that they cannot penetrate deeper into the tissues To inhibit growth of microbes by having a highly basic pH To make antibody-antigen binding more efficientarrow_forwardHuman immune system During the inflammatory response, histamine plays a key role in causing capillaries to become more permeable to phagocytic cells such as neutrophils. Antibodies directly kill bacterial cells by activating cell death programs that lead to apoptosis. Interferons are signaling molecules produced by bacteria that block (or interfere) with the ability of plasma cells to release antibodies.arrow_forward
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