PRESCOTT'S MICROBIOLOGY
11th Edition
ISBN: 2818440045677
Author: WILLEY
Publisher: MCG
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Textbook Question
Chapter 27, Problem 1AL
Describe an experimental approach to determine if a plant-associated microbe is a commensal or a mutualist.
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In terms of microbial pathogenicity, molecular Koch's postulates are a set of experimental criteria that show:
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Chapter 27 Solutions
PRESCOTT'S MICROBIOLOGY
Ch. 27.2 - What methanogenic substrates are also available in...Ch. 27.2 - What is the nutritional type of the endosymbiotic...Ch. 27.2 - How could one test to see if an insect-microbe...Ch. 27.2 - What is the role of the Riftia tube worms...Ch. 27.2 - Prob. 3CCCh. 27.2 - What is meant by tight trophic coupling between...Ch. 27.2 - Why is it important that the rumen is a reducing...Ch. 27.2 - Describe the mutualism between methanogenic...Ch. 27.2 - How does cooperation differ from mutualism? What...Ch. 27.2 - Why is the X. nematophilaS. carpocapsae symbiosis...
Ch. 27.3 - Prob. 1CCCh. 27.3 - Why is nitrification a good example of a...Ch. 27.3 - Describe the amensalism observed in attine ant...Ch. 27.3 - Prob. 4CCCh. 27.4 - How does myxobacterial predation differ from that...Ch. 27.4 - Define predation and parasitism. How are these...Ch. 27.4 - What is a lichen? Why is this considered an...Ch. 27.4 - What is the competitive exclusion principle? List...Ch. 27 - Prob. 1RCCh. 27 - Prob. 2RCCh. 27 - Prob. 3RCCh. 27 - Prob. 4RCCh. 27 - Prob. 5RCCh. 27 - Prob. 6RCCh. 27 - Prob. 7RCCh. 27 - Prob. 8RCCh. 27 - Prob. 9RCCh. 27 - Prob. 10RCCh. 27 - Prob. 11RCCh. 27 - Prob. 12RCCh. 27 - Prob. 13RCCh. 27 - Describe an experimental approach to determine if...Ch. 27 - Prob. 2ALCh. 27 - Prob. 3ALCh. 27 - Prob. 4AL
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- In General, the most suitable description for the origin of each colony formed on the surface of a solid medium is: a-Cluster of cells b-Colony forming unit c-Pair of cells d-Single cellarrow_forwardSoil bacteria such as Streptomyces spp. produce the bulk of known antibiotics. It has been suggested that in nature antibiotics serve as signaling molecules, allowing members of the same species or strain to communicate. If this is the case, what might these molecular signals be “saying” and how would such a message be transmitted?arrow_forwardpropose a hypothesis regarding the organisms (staphylococcus, escherichia, pseudomonas, and bacillus) that will be resistant to the most disinfectants, and why? if the hypothesis is supported, what specific experimental results will be observed? what would be the independent and dependent variable? zone size, disinfectant type, colony countarrow_forward
- Identify which of the following statements is a lie? Select one: a. Bacterial biofilms due to quorum sensing can be found on medical equipment and implants such as hip or knee replacements or heart pacemakers. b. Quorum sensing uses autoinducers as signaling molecules. Autoinducers are signaling molecules secreted by bacteria to communicate only with the same species of bacteria. c. The first evidence of bacterial communication was observed in a bacterium that has a symbiotic relationship with Hawaiian bobtail squid.arrow_forwardExample of a.) cooperation and b) competition in microorganismsarrow_forwardExplain the role of microbial antagonism in normal health of an individual. Use ALL of the following words in your explanation, and highlight each word with a highlighter: niche, microbial antagonism, compete, and commensal.arrow_forward
- In an in situ sample, describe the method that you woulduse to study the symbiotic interactions between various microbial species?arrow_forwardDescribe the interactions of Agrobacterium tumefaciens with its host plant. Why is this plant pathogen useful for biotechnology?arrow_forwardWhy do variations in generation time exist:a. Among different species of microorganisms?b. Within a single microbial species?arrow_forward
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