Prescott's Microbiology
10th Edition
ISBN: 9781259281594
Author: Joanne Willey, Linda Sherwood Adjunt Professor Lecturer, Christopher J. Woolverton Professor
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 32.2, Problem 1RIA
How might a microbial symbiont affect the uptake and
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Why is it incorrect to say that bacteria produce toxins to harm their host?
How does the associated microorganism benefit from its plant host?
Match the following examples to the appropriate type of symbiosis.
- A microbe that lives inside the large intestine of a human, getting food from its host and protecting the host from disease
a) Not a symbiosis
b)parasitism
c)commensalism
d) mutualism
-An insect that builds protected nests in trees, but does not help or damage the tree
a) Not a symbiosis
b)parasitism
c)commensalism
d) mutualism
-A lamprey that attaches to other fish and sucks their blood throughout their life
a) Not a symbiosis
b)parasitism
c)commensalism
d) mutualism
- A robin that eats worms out of the ground
a) Not a symbiosis
b)parasitism
c)commensalism
d) mutualism
Chapter 32 Solutions
Prescott's Microbiology
Ch. 32.1 - What methanogenic substrates are also available in...Ch. 32.1 - What is the nutritional type of the endosymbiotic...Ch. 32.1 - Prob. 3MICh. 32.1 - How does myxobacterial predation differ from that...Ch. 32.1 - How could one test to see if an insect-microbe...Ch. 32.1 - What is the role of the Riftia tube worms...Ch. 32.1 - Prob. 1.3RIACh. 32.1 - What is meant by tight trophic coupling between...Ch. 32.1 - Why is it important that the rumen is a reducing...Ch. 32.1 - Describe the mutualism between methanogenic...
Ch. 32.1 - How does cooperation differ from mutualism? What...Ch. 32.1 - Why is the X. nematophilaS. carpocapsae symbiosis...Ch. 32.1 - Prob. 3.1RIACh. 32.1 - Why is nitrification a good example of a...Ch. 32.1 - Define predation and parasitism. How are these...Ch. 32.1 - Prob. 3.4RIACh. 32.1 - What is a lichen? Why is this considered an...Ch. 32.1 - Describe the amensalism observed in attine ant...Ch. 32.1 - Prob. 4.2RIACh. 32.1 - What is the competitive exclusion principle? List...Ch. 32.2 - How might a microbial symbiont affect the uptake...Ch. 32.2 - Cite three reasons a germfree mouse would be more...Ch. 32.2 - People who suffer from colitis often find that...Ch. 32.3 - 1. Why is it important to understand the normal...Ch. 32.3 - Why is the skin not always a favorable...Ch. 32.3 - How do microorganisms contribute to body odor?Ch. 32.3 - Prob. 1.4RIACh. 32.3 - Prob. 2.1RIACh. 32.3 - What physiological processes move the microbiota...Ch. 32.3 - What is the role of pH in determining the...Ch. 32.3 - How would you define an opportunistic...Ch. 32 - Describe an experimental approach to determine if...Ch. 32 - Prob. 2CHICh. 32 - Prob. 3CHICh. 32 - Compare and contrast the microbial communities...Ch. 32 - The fruit fly Drosophila melanogaster is an...
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- We 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_forwardDescribe the symbiosis between the Riftia tubeworm and its bacterial symbiont. What is the role of the Riftia tube worm hemoglobin in the success of its relationship with the symbiotic bacteria?arrow_forwardWhich statement about Yersinia pestis is false?a) Conditions inside human phagocytes activate virulence genes.b) The bacterium can form biofilms in the flea digestive system.c) Yops protein increases phagocytosis.d) The organism resembles a safety pin in certain stained preparations.e) It was responsible for the “black death” in Europe during the 1300s.arrow_forward
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