Microbiology: A Systems Approach
4th Edition
ISBN: 9780073402437
Author: Marjorie Kelly Cowan Professor
Publisher: McGraw-Hill Education
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Chapter 22, Problem 13TF
Summary Introduction
Introduction:
A bacterium is a single-celled, prokaryotic
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19. On the diagram below
a. Label the three pictures as: DNA; polypeptide; or RNA.
b. Label the arrows as: translation or transcription/RNA processing.
c. Add the following details to the diagram.
Promoter region
TATA box
Transcription start site
Transcription terminator
Intron (A,B,C,D)
Exons (1,2,3,4,5)
Splice sites
5' cap
5' UTR (untranslated region)
3' poly A tail
3' UTR (untranslated region)
Translational start (AUG)
Translational stop (UGA, UAG, or UAA)
N and C ends of polypeptide
0000
Match the letter labels in the figure below to the terms. Some letter
labels are not used.
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
Chapter 22 Solutions
Microbiology: A Systems Approach
Ch. 22.1 - Prob. 1AYPCh. 22.1 - Prob. 2AYPCh. 22.2 - Prob. 3AYPCh. 22.2 - Prob. 4AYPCh. 22.3 - Prob. 2CFCh. 22.3 - List the possible causative agents for the...Ch. 22.3 - Prob. 6AYPCh. 22.3 - Name one distinct feature for each of the acute...Ch. 22.3 - Prob. 8AYPCh. 22.3 - Prob. 9AYP
Ch. 22.3 - Differentiate among the main types of hepatitis...Ch. 22.4 - Prob. 11AYPCh. 22.4 - Prob. 12AYPCh. 22.4 - Prob. 13AYPCh. 22.4 - Prob. 14AYPCh. 22.4 - Describe the type of disease caused by Trichinella...Ch. 22.4 - Prob. 16AYPCh. 22 - Prob. 1CFCh. 22 - Food moves down the GI tract through the action of...Ch. 22 - Prob. 2MCQCh. 22 - Gastric ulcers are caused by a. Treponema...Ch. 22 - Prob. 4MCQCh. 22 - Prob. 5MCQCh. 22 - Prob. 6MCQCh. 22 - This microorganism is commonly associated with...Ch. 22 - Prob. 8MCQCh. 22 - Prob. 9MCQCh. 22 - Prob. 10MCQCh. 22 - Prob. 11TFCh. 22 - Giardia lamblia is a water-borne, flagellated...Ch. 22 - Prob. 13TFCh. 22 - Prob. 14TFCh. 22 - Enterobius vermicularis commonly known as the...Ch. 22 - Prob. 1CTQCh. 22 - Prob. 2CTQCh. 22 - Prob. 3CTQCh. 22 - Prob. 4CTQCh. 22 - Prob. 5CTQCh. 22 - Prob. 6CTQCh. 22 - Prob. 7CTQCh. 22 - a. Describe methods used to definitively diagnose...Ch. 22 - Prob. 9CTQCh. 22 - Prob. 10CTQCh. 22 - Prob. 1CCCh. 22 - Prob. 2CCCh. 22 - Prob. 3CCCh. 22 - Prob. 4CCCh. 22 - Prob. 5CCCh. 22 - Prob. 6CCCh. 22 - Prob. 7CCCh. 22 - Prob. 8CCCh. 22 - Prob. 1VCCh. 22 - Prob. 2VCCh. 22 - Prob. 1CM
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