Human Biology (MindTap Course List)
11th Edition
ISBN: 9781305112100
Author: Cecie Starr, Beverly McMillan
Publisher: Cengage Learning
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Chapter 4, Problem 2CT
Summary Introduction
To explain: The reason why the patient who is suffering from scurvy tend to lose teeth, and the reason why the wounds heal much slowly than normal.
Introduction: The lack of vitamin C leads to the disease scurvy. This disease has various symptoms such as weakness, tired feelings, and sore legs and arms. The severity of this disease may lead to gum diseases, reduced RBC cells, changes to hairs, and bleeding from the skin.
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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 4 Solutions
Human Biology (MindTap Course List)
Ch. 4 - List the general characteristics of epithelium,...Ch. 4 - List the major types of connective tissues; add...Ch. 4 - Identify and describe the tissues shown below.Ch. 4 - Prob. 4RQCh. 4 - List the basic types of membranes in the body.Ch. 4 - Define the terms tissue, organ, and organ system....Ch. 4 - What are some functions of skin?Ch. 4 - Define homeostasis.Ch. 4 - What is extracellular fluid, and how does the...Ch. 4 - ________ tissues have closely linked cells and one...
Ch. 4 - Most has collagen and elastin fibers. a. muscle...Ch. 4 - __________, a specialized connective tissue, is...Ch. 4 - ______tissue detects and integrates information...Ch. 4 - _______can shorten (contract). a. Muscle tissue b....Ch. 4 - After you eat too many carbohydrates and proteins,...Ch. 4 - The bodys internal environment consists of______....Ch. 4 - In______, physical and chemical aspects of the...Ch. 4 - _______detect specific environmental changes,...Ch. 4 - Prob. 10SQCh. 4 - In people who have the genetic disorder anhidrotic...Ch. 4 - Prob. 2CTCh. 4 - The man pictured in Figure 4.17 wears skin...Ch. 4 - Prob. 4CTCh. 4 - Prob. 5CT
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