PRESCOTT'S MICROBILOGY
11th Edition
ISBN: 9781264075515
Author: WILLEY
Publisher: MCG
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Chapter 43.4, Problem 5CC
Summary Introduction
Direct leaching mechanism is mainly because of intimate contact, bacteria and adhesion to the mineral take place prior to the enzymatic attack by the organism. This leaching activity is inferred from scanning electron micrographs that demonstrates the adhesion of bacterial on mineral surfaces. This leaching mechanism is further confirmed by the leaching of synthetic sulfides free of iron, where only the direct attack of the bacteria can lead to leaching.
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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 43 Solutions
PRESCOTT'S MICROBILOGY
Ch. 43.1 - MICRO INQUIRY What is the difference between...Ch. 43.1 - Prob. 1CCCh. 43.1 - Prob. 2CCCh. 43.1 - Prob. 3CCCh. 43.1 - Prob. 4CCCh. 43.2 - Prob. 1MICh. 43.2 - Prob. 2MICh. 43.2 - Explain how primary, secondary, and tertiary...Ch. 43.2 - Prob. 1.2CCCh. 43.2 - Prob. 1.3CC
Ch. 43.2 - Prob. 1.4CCCh. 43.2 - Prob. 1.5CCCh. 43.2 - Prob. 3MICh. 43.2 - Prob. 2.1CCCh. 43.2 - Prob. 2.2CCCh. 43.2 - Prob. 2.3CCCh. 43.3 - Why must the membrane between the two chambers be...Ch. 43.3 - Prob. 1CCCh. 43.3 - Prob. 2CCCh. 43.3 - How might microbial fuel cells be involved in...Ch. 43.4 - Why does dehalogenation increase the likelihood...Ch. 43.4 - Prob. 1CCCh. 43.4 - Explain the two mechanisms of reductive...Ch. 43.4 - Prob. 3CCCh. 43.4 - What components are commonly added to microbes...Ch. 43.4 - Prob. 5CCCh. 43 - Prob. 1RCCh. 43 - Prob. 2RCCh. 43 - Prob. 3RCCh. 43 - Prob. 4RCCh. 43 - Prob. 5RCCh. 43 - Prob. 6RCCh. 43 - You wish to build a house in a rural community...Ch. 43 - Prob. 2ALCh. 43 - Prob. 3ALCh. 43 - Prob. 4AL
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