Biological Science (6th Edition)
6th Edition
ISBN: 9780321976499
Author: Scott Freeman, Kim Quillin, Lizabeth Allison, Michael Black, Emily Taylor, Greg Podgorski, Jeff Carmichael
Publisher: PEARSON
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Chapter 6, Problem 12PIAT
Summary Introduction
To review:
The difference between the chemical structure of saturated fats and unsaturated fats, and the physical property associated with these chemical differences.
Introduction:
Saturated fatty acids are considered as bad fat where all the carbon atoms have only single bonds, while unsaturated fat are considered as good fat where all the carbon atoms have single or more double bonds in the hydrocarbon chain. Both of these fats play a significant part in our daily diet.
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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 6 Solutions
Biological Science (6th Edition)
Ch. 6 - 1. How do the phospholipids in archaea differ from...Ch. 6 - If a solution surrounding a cell is hypertonic...Ch. 6 - Prob. 3TYKCh. 6 - 4. Integral membrane proteins are anchored in...Ch. 6 - 5. Cooking oil lipids consist of long, unsaturated...Ch. 6 - Prob. 6TYUCh. 6 - 7. In terms of structure, how do channel proteins...Ch. 6 - 8. Suppose a cell is placed in a solution with a...Ch. 6 - 9. PROCESS OF SCIENCE In an experiment, you create...Ch. 6 - Prob. 10TYPSS
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