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 25, Problem 4TQ
Summary Introduction
To review :
The reason behind the non-development of resistance to microbial toxins in humans.
Introduction:
Microbial toxins are toxic chemicals produced by microorganisms, including
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Students have asked these similar questions
Why is it incorrect to say that bacteria produce toxins to harm their host?
There are fewer antifungal, anti protozoal, and antihelminth drugs compared to antibacterial drugs because these organism:
a) do not cause many human infectious
b) are not affected by antimicrobial drugs
c) are so similar to human cells that drug selective toxicity is difficult
d) are parasites found inside human cells
e) have fewer target sites compared to bacteria
How is it that we are not in a state of continuous infection from the microbes we encounter every day?
Chapter 25 Solutions
Microbiology: An Evolving Science (Fourth Edition)
Ch. 25.1 - Prob. 1TQCh. 25.4 - Prob. 1TQCh. 25.4 - Prob. 2TQCh. 25.4 - Prob. 3TQCh. 25.4 - Prob. 4TQCh. 25.5 - Prob. 1TQCh. 25.6 - Prob. 1TQCh. 25.6 - Prob. 2TQCh. 25.6 - Prob. 3TQCh. 25.6 - Prob. 4TQ
Ch. 25.7 - Prob. 1TQCh. 25 - Prob. 1RQCh. 25 - Prob. 2RQCh. 25 - Prob. 3RQCh. 25 - Prob. 4RQCh. 25 - Prob. 5RQCh. 25 - Prob. 6RQCh. 25 - Prob. 7RQCh. 25 - Prob. 8RQCh. 25 - Prob. 9RQCh. 25 - Prob. 10RQCh. 25 - Prob. 11RQCh. 25 - Prob. 12RQCh. 25 - Prob. 13RQCh. 25 - Prob. 14RQCh. 25 - Prob. 15RQCh. 25 - Prob. 16RQCh. 25 - Prob. 17RQCh. 25 - Prob. 1TQCh. 25 - Prob. 2TQCh. 25 - Prob. 3TQCh. 25 - Prob. 4TQCh. 25 - Prob. 5TQ
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- Which one of the following categories for antibacterial agents is most likely to have toxic side effects for humans? a) disruptors of cell membrane structure b) inhibitors of cell wall synthesis Oc) inhibitors of protein synthesis d) antimetabolites RESET e) inhibitors of DNA synthesis Cancel Donearrow_forwardWe are outnumbered by the bacteria in our colon. Why don't they typically make us sick? a) They don't have enough food resources to thrive. Ob) The pH of the colon is too acidic. c) They do not prefer the environment of our intestine. d) The competition between microbes limits their pathogenicity (microbial antagonism).arrow_forwardMicrobial pathogenicity relates to A) O how a microbe overcomes host defenses B) O how a microbe survives in a host C) Ovirulence factors D) O toxins that may be produced by a microbe E) O pathogenicity relates to all of the abovearrow_forward
- Which of the following is true of selective toxicity? O 1) It refers to the process of determining the correct dose of a particular drug O 2) To be effective, an antimicrobial agent must be more toxic to the patient than 2) the pathogen O 3) It contributes to antibiotic resistance O 4) It refers to the body's ability to protect the brain and eye 5) It takes advantage of metabolic and structural differences between host and pathogenarrow_forwardWhen a child skins their knee and neosporin is applied, this reduces the chances of pathogens gaining entry to the body by A.) adhesion to receptor proteins. B.) endocytosis. C.) use of a biofilm. D.) the parenteral route.arrow_forwardBecause elemental poisons, such as heavy metals, cannot be furtherdegraded even by microbes, what is a possible fate of these metals?arrow_forward
- An infectious disease process starts when a pathogen is transmitted from a "source" to a susceptible host. Which among A-Dis not applicable to the "source"? A) Oit can be another human B) O it is typically called the reservoir C) O it could be an animal D) O it could be water or soil E) OA-D are all applicable to the "source"arrow_forwardPathogenic microbes that cause disease in health care settings fall under which category of organisms? O 1) Normal flora O 2) True pathogens O 3) opportunists 3) O 4) Nosocomialarrow_forwardWhich one of the following is not correct? * a) Biocompatibility is the ability of a material to perform within an appropriate host response. b) Bioactivity is the characteristic that not allows the material to form a bond with living tissue c) Biodegradability is the breakdown of O the implant due to chemical or cellular interaction. O d) all of abovearrow_forward
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