BIOLOGY:ESSENTIALS (LL)-W/ACCES>CUSTOM<
3rd Edition
ISBN: 9781264722204
Author: Hoefnagels
Publisher: MCG CUSTOM
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Chapter 19.6, Problem 4MC
Summary Introduction
To sketch:
An energy pyramid for an ecosystem with three levels of consumers.
Introduction:
The food chain is a linear order of feeding relationships among the species. Each organism has a different position in the food chain. Producers occupy the first place in the food chain because the food chain begins with primary producers.
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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 19 Solutions
BIOLOGY:ESSENTIALS (LL)-W/ACCES>CUSTOM<
Ch. 19.1 - Distinguish between ecosystems, communities, and...Ch. 19.1 - Prob. 2MCCh. 19.1 - What is the relationship between an organisms...Ch. 19.2 - Explain this statement: If Earths axis were not...Ch. 19.2 - Prob. 2MCCh. 19.3 - Prob. 1MCCh. 19.3 - Infer one adaptation of plants and one adaptation...Ch. 19.3 - Describe the types of organisms that live in each...Ch. 19.3 - Prob. 4MCCh. 19.3 - Describe some of the adaptations that characterize...
Ch. 19.4 - Prob. 1MCCh. 19.4 - Prob. 2MCCh. 19.4 - Prob. 3MCCh. 19.4 - Prob. 4MCCh. 19.4 - Prob. 5MCCh. 19.5 - Prob. 1MCCh. 19.5 - Prob. 2MCCh. 19.5 - Prob. 3MCCh. 19.5 - Prob. 4MCCh. 19.5 - How do disturbances prevent true climax...Ch. 19.6 - Prob. 1MCCh. 19.6 - Prob. 2MCCh. 19.6 - Prob. 3MCCh. 19.6 - Prob. 4MCCh. 19.6 - Prob. 5MCCh. 19.7 - Describe the main abiotic reservoirs for the...Ch. 19.7 - What unique roles do microbes play in the nitrogen...Ch. 19.7 - Prob. 3MCCh. 19 - Which of the following is an example of an...Ch. 19 - Why are the poles colder that equator? a. Because...Ch. 19 - A biome with high average temperature and moderate...Ch. 19 - Prob. 4MCQCh. 19 - Prob. 5MCQCh. 19 - Prob. 6MCQCh. 19 - Prob. 7MCQCh. 19 - Prob. 8MCQCh. 19 - Prob. 9MCQCh. 19 - Prob. 10MCQCh. 19 - How does a community differ from an ecosystem?Ch. 19 - Prob. 2WIOCh. 19 - Prob. 3WIOCh. 19 - Prob. 4WIOCh. 19 - Use the clues provided to determine which biome...Ch. 19 - Prob. 6WIOCh. 19 - Prob. 7WIOCh. 19 - Prob. 8WIOCh. 19 - Prob. 9WIOCh. 19 - Prob. 10WIOCh. 19 - Prob. 11WIOCh. 19 - Search the Internet to find a definition for...Ch. 19 - Prob. 1PITCh. 19 - Prob. 2PITCh. 19 - Prob. 3PIT
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