Biology: Concepts and Investigations
5th Edition
ISBN: 9781260259049
Author: Hoefnagels
Publisher: MCG
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Chapter 17.4, Problem 3MC
What adaptations enable pathogenic bacteria to enter the body and cause disease?
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Normal microbiota provide protection from infection in each of the following ways EXCEPT:
Question 3 options:
A)
they produce antibacterial chemicals.
B)
they compete with pathogens for nutrients.
C)
they make the chemical environment unsuitable for nonresident bacteria.
D)
they produce lysozyme.
Pathogenic infections induce damage to the host by a variety of mechanisms. While many mechanisms are direct effects of the pathogen, some damaging mechanisms result from the immune response to the infection. Examples of damage caused by the host immune response are:
a) Exotoxin production, endotoxin
b) Cell-mediated inmunity, direct cytopathic effect
c) Endotoxin, inmmunune complexes
d) Direct cythopathic effect, endotoxin
e) Cell-mediated inmunity, inmmunune complexes
How long does a virus infection last without antibiotics?
Chapter 17 Solutions
Biology: Concepts and Investigations
Ch. 17.1 - What are two domains that contain prokaryotes?Ch. 17.1 - Prob. 2MCCh. 17.1 - Prob. 3MCCh. 17.1 - Prob. 4MCCh. 17.2 - Prob. 1MCCh. 17.2 - Prob. 2MCCh. 17.2 - What does the Gram stain reveal about a cell?Ch. 17.2 - Prob. 4MCCh. 17.2 - Prob. 5MCCh. 17.2 - How are molecular data changing microbial...
Ch. 17.2 - Prob. 7MCCh. 17.3 - Prob. 1MCCh. 17.3 - Prob. 2MCCh. 17.3 - Prob. 3MCCh. 17.4 - Prob. 1MCCh. 17.4 - Prob. 2MCCh. 17.4 - What adaptations enable pathogenic bacteria to...Ch. 17.4 - What are some practical uses of bacteria and...Ch. 17.5 - Prob. 1MCCh. 17.5 - Prob. 2MCCh. 17 - A prokaryotic cell is one that a. lacks DNA. b....Ch. 17 - Which of these is a distinguishing characteristic...Ch. 17 - What feature distinguishes the cell walls of...Ch. 17 - Prob. 4MCQCh. 17 - Prob. 5MCQCh. 17 - Prob. 6MCQCh. 17 - Prob. 7MCQCh. 17 - Prob. 8MCQCh. 17 - Explain why the antibiotics penicillin and...Ch. 17 - Give five examples that illustrate how bacteria...Ch. 17 - If you were developing a new "broad-spectrum"...Ch. 17 - Ernst Mayr defined a biological species as a...Ch. 17 - In an article in Nature magazine, Sean Nee wrote...Ch. 17 - Ecosystems rely on nitrogen -fixing bacteria,...Ch. 17 - Prob. 7WIOCh. 17 - Prob. 8WIOCh. 17 - Prob. 9WIOCh. 17 - Prob. 10WIOCh. 17 - Mycobacterium tuberculosis causes most cases of...Ch. 17 - Prob. 1PITCh. 17 - Add autotrophs, heterotrophs, phototrophs, and...Ch. 17 - Prob. 3PITCh. 17 - Prob. 4PITCh. 17 - Prob. 5PIT
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- How long does a bacterial infection last without antibiotics?arrow_forwardAn infectious disease is a disease that is caused when a pathogen is passed from one organism to another. The nonliving pathogen is the a) Parasites b) Bacteria c) Virus d) Protozoa Please I need a surely answer and a quicker responsearrow_forwardWhy are bacteria referred to as pathogens?arrow_forward
- Explain what are antibiotics?arrow_forwardWhat are some mechanisms by which pathogenic bacteria cause diseases? Why is this knowledge important?arrow_forwardIn December 2019, a family in Asia detected signs and symptoms of pneumonia. Laboratory diagnosis detected a virus belonging to the Group of Betacoronaviruses. Within a week, several people within the community began experiencing similar symptoms. It gradually spread to the entire city. In the field of Microbiology, this city may be experiencing a/an ………………………………….……. If this infection spreads globally, it may be deemed a ……………………………………….... If the infection is contracted by an individual who travelled to West Africa, the infection will be known to have been ……………………………………………. And this person will be a/an …………………………………………….. If this person visibly presents with visible signs of the infection, He will be known to be ……………………………………………………… Other individuals who incubate the pathogen but do not show any signs and symptoms of the disease are known as …………………………………………………………………………..arrow_forward
- Because most pathogens cannot survive for extended peri-ods of time outside the body, they must persist within inorder to maintain their ability to infect humans.(a) Macrophages(b) Viruses(c) Reservoirs of infection(d) Endosporesarrow_forwardOur environment contains masses of microorganisms, many of which reside as commensal organisms on our body’s mucosal and epithelial surfaces without causing disease. What two features distinguish a pathogenic microbe from these commensal microbes?arrow_forwardWhich type of infection is the MOST easily spread to the largest number of people? Question 3 options: a) gastrointestinal b) vector-borne c) respiratory d) sexually transmittedarrow_forward
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