Human Anatomy (8th Edition)
8th Edition
ISBN: 9780134243818
Author: Elaine N. Marieb, Patricia Brady Wilhelm, Jon B. Mallatt
Publisher: PEARSON
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Chapter 21, Problem 19RQ
Summary Introduction
To review:
The presence of lymphoid follicles in the white pulp of spleen.
Introduction:
Lymphoid organs are associated with the task of collection and filtration of lymph from foreign bodies. The spleen is a secondary lymphoid organ. It is made up of two parts, namely white pulp and the red pulp. It carries out both the immune functions as well as the function of clearing worn-out erythrocytes.
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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 21 Solutions
Human Anatomy (8th Edition)
Ch. 21 - Prob. 1CYUCh. 21 - A sentinel lymph node is the first lymph node to...Ch. 21 - Fatty lymph, picked up by the lacteals in the...Ch. 21 - Prob. 4CYUCh. 21 - Prob. 5CYUCh. 21 - Prob. 6CYUCh. 21 - Prob. 7CYUCh. 21 - Prob. 8CYUCh. 21 - Prob. 9CYUCh. 21 - Prob. 10CYU
Ch. 21 - Prob. 11CYUCh. 21 - Lymphatic capillaries (a) are open-ended like...Ch. 21 - The basic structural framework of most lymphoid...Ch. 21 - Prob. 3RQCh. 21 - Prob. 4RQCh. 21 - Prob. 5RQCh. 21 - Prob. 6RQCh. 21 - Which of the following lymphoid organs have a...Ch. 21 - Which one of the following lymphoid organs does...Ch. 21 - Developmentally, the embryonic lymphatic vessels...Ch. 21 - It sometimes is difficult to distinguish the...Ch. 21 - In some people, the thoracic duct does not receive...Ch. 21 - Prob. 12RQCh. 21 - Prob. 13RQCh. 21 - Prob. 14RQCh. 21 - Prob. 15RQCh. 21 - Prob. 16RQCh. 21 - Prob. 17RQCh. 21 - As George was reading this chapter for the second...Ch. 21 - Prob. 19RQCh. 21 - Prob. 20RQCh. 21 - Prob. 1CRCAQCh. 21 - Prob. 2CRCAQCh. 21 - Prob. 3CRCAQCh. 21 - Mrs. Roselli has undergone a left radical...Ch. 21 - Prob. 5CRCAQCh. 21 - Simi realized she was very ill. During a recent...
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