MICROBIOLOGY-ACCESS >CUSTOM<
13th Edition
ISBN: 9780135668825
Author: Tortora
Publisher: PEARSON
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Chapter 17, Problem 5MCQ
Summary Introduction
Introduction:
Antibodies are globular protein, which is secreted by immunoglobulin molecules. Immunoglobulins are produced by plasma cells, which contains the antigen binding site that allows the antigen to bind. It is found in blood, tissues and other body fluids to make the immune system. Antibodies are Y shaped molecules that contain two light chains and two heavy chains that interlinked by disulfide bridges. The immunoglobulins are classified into five classes such as IgG, IgA, IgM, IgD and IgE, based on their role in the immune system against the antigenic exposure.
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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 17 Solutions
MICROBIOLOGY-ACCESS >CUSTOM<
Ch. 17 - Contrast the terms in the following pairs: a....Ch. 17 - What does MHC stand for? What is the function of...Ch. 17 - Why is dietary protein deficiency associated with...Ch. 17 - Prob. 4RCh. 17 - Prob. 5RCh. 17 - DRAW IT a. In the graph below, at time A the host...Ch. 17 - How would each of the following prevent infection?...Ch. 17 - Prob. 8RCh. 17 - Explain why a person who recovers from a disease...Ch. 17 - Prob. 10R
Ch. 17 - Prob. 1MCQCh. 17 - The type of protection provided by the injection...Ch. 17 - Prob. 3MCQCh. 17 - Prob. 4MCQCh. 17 - Prob. 5MCQCh. 17 - Prob. 6MCQCh. 17 - Prob. 7MCQCh. 17 - Prob. 8MCQCh. 17 - Prob. 9MCQCh. 17 - Prob. 10MCQCh. 17 - Prob. 1ACh. 17 - Why is dietary protein deficiency associated with...Ch. 17 - A positive tuberculin skin test shows cellular...Ch. 17 - On her vacation to Australia, Janet was bitten by...Ch. 17 - Prob. 1CAECh. 17 - Prob. 2CAECh. 17 - A patient with chronic diarrhea was found to lack...Ch. 17 - Newborns (under 1 year) who contract dengue have a...
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