ANATOMY AND PHYSIOLOGY
4th Edition
ISBN: 9781265506605
Author: Bidle
Publisher: MCG
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Chapter 21.1, Problem 3WDYL
Summary Introduction
To determine:
The mechanisms that are used to assist the movement of lymph through the lymph vessels.
Concept introduction:
The lymphatic system is a part of the circulatory system and immune system that have interconnected lymphatic vessels which contain a clear fluid called lymph. Lymphatic system comprises cells, tissues and other organs which defend our body against infections and disease. The lymphatic vessels also have lymph-a clear fluid which is found outside the cells.
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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
ANATOMY AND PHYSIOLOGY
Ch. 21.1 - What substances typically are absorbed from the...Ch. 21.1 - Prob. 2WDYLCh. 21.1 - Prob. 3WDYLCh. 21.1 - Which major body regions drain lymph to the right...Ch. 21.2 - How are primary lymphatic structures and secondary...Ch. 21.3 - Why is red bone marrow considered a primary...Ch. 21.3 - Prob. 7WDYLCh. 21.4 - Prob. 8WDYLCh. 21.4 - What are the general functions of the spleen?...Ch. 21.4 - Prob. 10WDYL
Ch. 21.4 - Prob. 11WDYLCh. 21.4 - What is the function of MALT in the mucosal...Ch. 21 - Prob. 1DYKBCh. 21 - _____ 2. Lymph is drained into the thoracic duct...Ch. 21 - _____ 3. The spleen is a secondary lymphatic...Ch. 21 - Prob. 4DYKBCh. 21 - _____ 5. Which type of lymph vessel consists...Ch. 21 - _____ 6. Which statement is accurate about lymph...Ch. 21 - In an early Streptococcus infection of the throat,...Ch. 21 - _____ 8. The lymphatic trunk that drains lymph...Ch. 21 - _____ 9. Aged erythrocytes are removed from...Ch. 21 - _____ 10. Interstitial fluid that is absorbed into...Ch. 21 - Prob. 11DYKBCh. 21 - Prob. 12DYKBCh. 21 - Prob. 13DYKBCh. 21 - Which body regions have their lymph drained to the...Ch. 21 - Describe how the thymuss anatomy changes as we...Ch. 21 - Prob. 16DYKBCh. 21 - Compare and contrast the red and white pulp of the...Ch. 21 - Describe the specific locations of the tonsils.Ch. 21 - Describe the location and function of diffuse...Ch. 21 - Prob. 20DYKBCh. 21 - Prob. 1CALCh. 21 - A child born without his thymus would not have...Ch. 21 - Prob. 3CALCh. 21 - Prob. 4CALCh. 21 - Prob. 5CALCh. 21 - Prob. 1CSLCh. 21 - Jordan has an enlarged lymph node along the side...Ch. 21 - Prob. 3CSL
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