Biology: Concepts and Investigations
4th Edition
ISBN: 9780078024207
Author: Mariëlle Hoefnagels Dr.
Publisher: McGraw-Hill Education
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Chapter 28.4, Problem 1MC
Summary Introduction
To determine:
The functions of thyroid’s hormones.
Concept introduction:
The thyroid gland is a part of the hypothalamic pituitary thyroid axis and secretes the thyroxine, triiodothyronine and calcitonin hormone. Thyroid releasing hormone from the hypothalamus stimulates the thyroid stimulating hormone from the pituitary which stimulates thyroid hormone release.
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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 28 Solutions
Biology: Concepts and Investigations
Ch. 28.1 - Prob. 1MCCh. 28.1 - Prob. 2MCCh. 28.1 - Prob. 3MCCh. 28.1 - Prob. 4MCCh. 28.1 - Prob. 5MCCh. 28.2 - Prob. 1MCCh. 28.2 - Describe the locations of the receptors that bind...Ch. 28.2 - Prob. 3MCCh. 28.2 - Prob. 4MCCh. 28.3 - Prob. 1MC
Ch. 28.3 - Prob. 2MCCh. 28.4 - Prob. 1MCCh. 28.4 - Prob. 2MCCh. 28.4 - Prob. 3MCCh. 28.4 - Prob. 4MCCh. 28.4 - Prob. 5MCCh. 28.5 - Prob. 1MCCh. 28.5 - Prob. 2MCCh. 28.6 - Prob. 1MCCh. 28.6 - Prob. 2MCCh. 28 - The effect of a water-soluble peptide hormone such...Ch. 28 - Prob. 2MCQCh. 28 - Prob. 3MCQCh. 28 - Prob. 4MCQCh. 28 - Prob. 5MCQCh. 28 - Prob. 6MCQCh. 28 - To increase male fertility, it would be logical to...Ch. 28 - How does the endocrine system interact with the...Ch. 28 - Prob. 2WIOCh. 28 - Prob. 3WIOCh. 28 - Sketch the mechanisms of water-soluble and...Ch. 28 - Give two examples of hormones counteracting the...Ch. 28 - Alcohol and caffeine inhibit the effects of...Ch. 28 - Prob. 7WIOCh. 28 - Prob. 8WIOCh. 28 - Prob. 9WIOCh. 28 - How might insulin-producing stem cells...Ch. 28 - Prob. 11WIOCh. 28 - Prob. 12WIOCh. 28 - Prob. 1PITCh. 28 - Connect each hormone discussed in this chapter to...Ch. 28 - Prob. 3PIT
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