Mindtap Biology, 1 Term (6 Months) Printed Access Card For Solomon/martin/martin/berg's Biology, 11th
11th Edition
ISBN: 9781337393096
Author: Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher: Cengage Learning
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Chapter 31.1, Problem 1LO
Summary Introduction
To identify: The important characteristics of poriferans.
Concept introduction: All sponges belong to a phylum called Porifera. They are the simplest animals with cellular level of organization. They have diverged from other animals early in the evolution. Hence, they are called as basal animals. They have a very simple body structure composed of only two layers of cells. In between the two layers, a gelatinous region is present called mesohyl. The exchange of nutrient and waste material takes place through diffusion in sponges.
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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 31 Solutions
Mindtap Biology, 1 Term (6 Months) Printed Access Card For Solomon/martin/martin/berg's Biology, 11th
Ch. 31.1 - Prob. 1LOCh. 31.1 - Prob. 2LOCh. 31.1 - Prob. 3LOCh. 31.1 - connect What is the significance of choanocytes in...Ch. 31.1 - Prob. 2CCh. 31.1 - VISUALIZE Sketch the major events of the life...Ch. 31.1 - Prob. 4CCh. 31.2 - Prob. 4LOCh. 31.2 - Prob. 5LOCh. 31.2 - Prob. 6LO
Ch. 31.2 - Prob. 7LOCh. 31.2 - Prob. 8LOCh. 31.2 - What are some advantages of cephalization and a...Ch. 31.2 - On what basis have biologists classified...Ch. 31.2 - Prob. 3CCh. 31.2 - Prob. 4CCh. 31.3 - Prob. 9LOCh. 31.3 - Prob. 10LOCh. 31.3 - Describe six key characteristics of arthropods,...Ch. 31.3 - Prob. 12LOCh. 31.3 - Prob. 1CCh. 31.3 - Describe four key arthropod characteristics, and...Ch. 31.3 - Prob. 3CCh. 31.3 - Describe four adaptations that have contributed to...Ch. 31 - Prob. 1TYUCh. 31 - Prob. 2TYUCh. 31 - Which of the following is associated with the...Ch. 31 - Trochophore larvae are characteristic of (a)...Ch. 31 - Prob. 5TYUCh. 31 - An open circulatory system (a) is characteristic...Ch. 31 - Which of the following characteristics is...Ch. 31 - Trilobites (a) were early mollusks (b) are...Ch. 31 - Prob. 9TYUCh. 31 - Prob. 10TYUCh. 31 - The correct sequence of complete metamorphosis of...Ch. 31 - Test Your Understanding 12. VISUALIZE Draw a cross...Ch. 31 - Prob. 13TYUCh. 31 - Prob. 14TYUCh. 31 - INTERPRET DATA Imagine that you discover a new...Ch. 31 - Prob. 16TYUCh. 31 - Prob. 17TYUCh. 31 - Prob. 18TYUCh. 31 - SCIENCE, TECHNOLOGY, AND SOCIETY international...
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