Anatomy & Physiology
5th Edition
ISBN: 9780321861580
Author: Marieb, Elaine N.
Publisher: Pearson College Div
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Chapter 22, Problem 46CYU
In what ways are enteric bacteria important to our nutrition?
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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 22 Solutions
Anatomy & Physiology
Ch. 22 - Name one organ of the alimentary canal found in...Ch. 22 - Prob. 2CYUCh. 22 - Prob. 3CYUCh. 22 - Prob. 4CYUCh. 22 - The term gut brain does not really mean there is a...Ch. 22 - How does the location of the visceral peritoneum...Ch. 22 - Of the following organs, which is/are...Ch. 22 - What name is given to the venous portion of the...Ch. 22 - Name the layers of the alimentary canal from the...Ch. 22 - Jerry has been given a drug that inhibits...
Ch. 22 - 11. How does the oral vestibule differ from the...Ch. 22 - Which structure forms the roof of the mouth?Ch. 22 - Besides preparing food for swallowing, the tongue...Ch. 22 - Prob. 14CYUCh. 22 - Prob. 15CYUCh. 22 - Prob. 16CYUCh. 22 - Prob. 17CYUCh. 22 - Prob. 18CYUCh. 22 - To which two organ systems does the pharynx...Ch. 22 - How is the muscularis externa of the esophagus...Ch. 22 - What is the functional significance of the...Ch. 22 - What role does the tongue play in swallowing?Ch. 22 - How are the respiratory passages blocked during...Ch. 22 - Prob. 24CYUCh. 22 - Two substances secreted by cells of the gastric...Ch. 22 - Prob. 26CYUCh. 22 - Name the three phases of gastric secretion.Ch. 22 - How does the presence of food in the small...Ch. 22 - How does the pH of venous blood leaving the...Ch. 22 - Prob. 30CYUCh. 22 - What are brush border enzymes?Ch. 22 - Prob. 32CYUCh. 22 - Prob. 33CYUCh. 22 - What is a portal triad?Ch. 22 - What is the importance of the enterohepatic...Ch. 22 - Prob. 36CYUCh. 22 - Prob. 37CYUCh. 22 - Prob. 38CYUCh. 22 - What is the makeup of the fluid in the pancreatic...Ch. 22 - Prob. 40CYUCh. 22 - Distension of the stomach and duodenal walls have...Ch. 22 - Prob. 42CYUCh. 22 - Prob. 43CYUCh. 22 - Prob. 44CYUCh. 22 - What is the result of stimulation of stretch...Ch. 22 - In what ways are enteric bacteria important to our...Ch. 22 - What type of chemical reaction is the basis of all...Ch. 22 - Prob. 48CYUCh. 22 - Prob. 49CYUCh. 22 - The peritoneal cavity (a) is the same thing as the...Ch. 22 - Prob. 2RQCh. 22 - Prob. 3RQCh. 22 - Carbohydrates are acted on by (a) peptidases,...Ch. 22 - The parasympathetic nervous system influences...Ch. 22 - The digestive juice product containing enzymes...Ch. 22 - Prob. 7RQCh. 22 - Someone has eaten a meal of buttered toast, cream,...Ch. 22 - The site of production of cholecystokinin is (a)...Ch. 22 - Prob. 10RQCh. 22 - The gallbladder (a) produces bile, (b) is attached...Ch. 22 - The sphincter between the stomach and duodenum is...Ch. 22 - The protein molecule will be digested by enzymes...Ch. 22 - The protein molecule must be digested before it...Ch. 22 - The products of protein digestion enter the...Ch. 22 - Before the blood carrying the products of protein...Ch. 22 - Having passed through the regulatory organ...Ch. 22 - Make a simple line drawing of the organs of the...Ch. 22 - Prob. 19RQCh. 22 - Name the layers of the alimentary canal wall. Note...Ch. 22 - What is a mesentery? Mesocolon? Greater omentum?Ch. 22 - Prob. 22RQCh. 22 - (a) Describe the boundaries of the oral cavity....Ch. 22 - Prob. 24RQCh. 22 - Describe the two phases of swallowing, noting the...Ch. 22 - Describe the role of these cells found in gastric...Ch. 22 - Describe the regulation of the cephalic, gastric,...Ch. 22 - (a) What is the relationship between the cystic,...Ch. 22 - Prob. 29RQCh. 22 - Indicate the function of the stellate macrophages...Ch. 22 - Prob. 31RQCh. 22 - Prob. 32RQCh. 22 - Prob. 1CCSCh. 22 - Prob. 2CCS
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