Microbiology with Diseases by Taxonomy (5th Edition)
5th Edition
ISBN: 9780134019192
Author: Robert W. Bauman Ph.D.
Publisher: PEARSON
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Chapter 26, Problem 1TF
Summary Introduction
Introduction:
Milk products that are produced by lactic acid fermentation (e.g. yoghurt) or formed by a combination of lactic acid bacteria and yeast fermentation are called fermented milk products.
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Match the letter labels in the figure below to the terms. Some letter
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MNNNNNNIN
M
C
B
A
M
D
F
E
H
K
G
8
The diagram below illustrates a quorum sensing pathway from Staphylococcus aureus. Please answer the following questions.
1. Autoinduction is part of the quorum sensing system. Which promoter (P2 or P3) is critical for autoinduction?
2)This staphylococcus aureus grows on human wounds, causing severe infections. You would like to start a clinical trial to treat these wound infections. Please describe:
a) What molecule do you recommend for the trial. Why?
b) Your trial requires that Staphylococcus aureus be isolated from the wound and submitted to genome sequencing before admittance. Why? What are you testing for?
3) If a mutation arises where the Promoter P3 is constitutively active, how would that influence sensitivity to AIP? Please explain your rationale.
4) This pathway is sensitive to bacterial cell density. Describe two separate mutation that would render the pathway active independent of cell density. Briefly explain your rationale.
Mutation 1
Mutation 2
There is currently a H5N1 cattle outbreak in North America.
According to the CDC on Feb 26*: "A multistate outbreak of HPAI A(H5N1) bird flu in dairy cows was first reported on March 25, 2024. This is the first time that these bird flu viruses had been found in cows. In the United States, since 2022, USDA has reported HPAI A(H5N1) virus detections in more than 200 mammals."
List and describe two mechanisms that could lead to this H5N1 influenza strain evolving to spread in human:
Mechanisms 1:
Mechanisms 2:
For the mutations to results in a human epidered they would need to change how the virus interacts with the human host. In the case of mutations that may promote an epidemic, provide an example for:
a protein that might incur a mutation:
how the mutation would change interactions with cells in the respiratory tract (name the receptor on human cells)
List two phenotypic consequence from this mutation that would increase human risk
Chapter 26 Solutions
Microbiology with Diseases by Taxonomy (5th Edition)
Ch. 26 - Prob. 1MCCh. 26 - Prob. 2MCCh. 26 - Prob. 3MCCh. 26 - Prob. 4MCCh. 26 - Prob. 5MCCh. 26 - Prob. 6MCCh. 26 - Which of the following is added during water or...Ch. 26 - Prob. 8MCCh. 26 - Prob. 9MCCh. 26 - Prob. 10MC
Ch. 26 - In the environment, nutrients are generally...Ch. 26 - Most chemical elements exist in the environment as...Ch. 26 - In the carbon cycle, microbes convert _______. a....Ch. 26 - Prob. 14MCCh. 26 - In aquatic environments, most microbial life is...Ch. 26 - Prob. 16MCCh. 26 - Of the following characteristics, which would...Ch. 26 - Anammox reactions are _______. a. anaerobic and...Ch. 26 - Prob. 19MCCh. 26 - Prob. 20MCCh. 26 - Match each term with its correct definition. 1. __...Ch. 26 - Prob. 1TFCh. 26 - Prob. 2TFCh. 26 - Prob. 3TFCh. 26 - __ Methane is a gas produced by microbial...Ch. 26 - Prob. 5TFCh. 26 - __ Recalcitrant molecules can be degraded by...Ch. 26 - __ Biofilms of microorganisms form in aquatic...Ch. 26 - __ Cooperation is common among microorganisms...Ch. 26 - ______ Aquatic microorganisms are more prevalent...Ch. 26 - _______ Abyssal organisms are found near shores of...Ch. 26 - Prob. 1FIBCh. 26 - Prob. 2FIBCh. 26 - Prob. 3FIBCh. 26 - Prob. 4FIBCh. 26 - Leaching of compounds from mine tailings often...Ch. 26 - Biogeochemical cycling involves three primary...Ch. 26 - Nitrogen exists primarily as ______ in the...Ch. 26 - Prob. 8FIBCh. 26 - A _________ is a device composed of microbes and...Ch. 26 - Prob. 10FIBCh. 26 - Label the general phases in the carbon cycle.Ch. 26 - Label the processes of the nitrogen cycle.Ch. 26 - Why does the application of recombinant DNA...Ch. 26 - Given what you know about microbial nutrition and...Ch. 26 - Compare the types of alternative fuels that could...Ch. 26 - Prob. 4CTCh. 26 - Even though water and wastewater undergo...Ch. 26 - Take a critical look at the garbage in all of your...Ch. 26 - Prob. 7CTCh. 26 - Prob. 8CTCh. 26 - Explain why sake- sometimes called rice wine-would...Ch. 26 - Inexpensive bulk wines and wines that have been...Ch. 26 - Prob. 11CTCh. 26 - Prob. 12CTCh. 26 - Prob. 13CTCh. 26 - Explain how biosensors might be used for water...Ch. 26 - Prob. 15CTCh. 26 - Using the following terms, fill in the following...Ch. 26 - Even though microbes are naturally present in raw...Ch. 26 - Prob. 2TMWCh. 26 - A blogger stated that germs (microorganisms) are...Ch. 26 - Compare human, animal, and plant pathogens that...
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