Microbiology: An Introduction (13th Edition)
13th Edition
ISBN: 9780134605180
Author: Gerard J. Tortora, Berdell R. Funke, Christine L. Case, Derek Weber, Warner Bair
Publisher: PEARSON
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Chapter 24, Problem 5MCQ
Summary Introduction
Introduction:
Histoplasma capsulatum is the causative agent for Histoplasmosis. It has many names and it is seen in the immunosuppressed AIDS patient. Symptoms are seen as TB, treatment is done by antifungal agents.
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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 24 Solutions
Microbiology: An Introduction (13th Edition)
Ch. 24 - DRAW IT Show the locations of the following...Ch. 24 - Compare and contrast mycoplasmal pneumonia and...Ch. 24 - Prob. 3RCh. 24 - Complete the following table.Ch. 24 - Under what conditions can the saprophytes...Ch. 24 - Prob. 6RCh. 24 - List the causative agent, mode of transmission,...Ch. 24 - Prob. 8RCh. 24 - Prob. 9RCh. 24 - Prob. 10R
Ch. 24 - Prob. 1MCQCh. 24 - No bacterial pathogen can be isolated from the...Ch. 24 - Prob. 3MCQCh. 24 - Match the following choices to the culture...Ch. 24 - Prob. 5MCQCh. 24 - Match the following choices to the culture...Ch. 24 - Prob. 7MCQCh. 24 - Prob. 8MCQCh. 24 - Prob. 9MCQCh. 24 - Prob. 10MCQCh. 24 - Prob. 1ACh. 24 - Prob. 2ACh. 24 - Prob. 3ACh. 24 - In August, a 24-year-old man from Virginia...Ch. 24 - Prob. 2CAECh. 24 - Prob. 3CAE
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