MICROBIOLOGY-ACCESS >CUSTOM<
13th Edition
ISBN: 9780135668825
Author: Tortora
Publisher: PEARSON
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Chapter 11, Problem 4R
Summary Introduction
Introduction
Methanogens belong to the archaea domain and are obligate anaerobes. They are extremophiles and they live in extreme environmental conditions, like high temperatures. The cell wall present in this domain helps in its protection. They are syntrophic in nature.
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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 11 Solutions
MICROBIOLOGY-ACCESS >CUSTOM<
Ch. 11 - The following outline can be used to identify...Ch. 11 - Compare and contrast each of the following: a....Ch. 11 - DRAW IT Draw a key to differentiate the following...Ch. 11 - Prob. 4RCh. 11 - If you Gram-stained the bacteria that live in the...Ch. 11 - Which of the following does not belong with the...Ch. 11 - Prob. 3MCQCh. 11 - Prob. 4MCQCh. 11 - Which of the following terms is the most specific?...Ch. 11 - Which one of the following does not belong with...
Ch. 11 - Which of the following pairs is mismatched? a....Ch. 11 - Prob. 8MCQCh. 11 - When Legionella was newly discovered, why was it...Ch. 11 - Prob. 10MCQCh. 11 - Prob. 1ACh. 11 - Prob. 2ACh. 11 - Bacteria are single-celled organisms that must...Ch. 11 - After contact with a patients spinal fluid, a lab...Ch. 11 - Between April 1 and May 15 of one year. 22...Ch. 11 - Prob. 3CAE
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