Human Anatomy & Physiology (Marieb, Human Anatomy & Physiology) Standalone Book
10th Edition
ISBN: 9780321927040
Author: Elaine N. Marieb, Katja Hoehn
Publisher: PEARSON
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Chapter 3, Problem 1MC
Summary Introduction
To determine:
The smallest unit which is capable of life independently.
Expert Solution & Answer
Answer to Problem 1MC
Solution:
(d) The cell
Explanation of Solution
The cell is considered to be the smallest structural, functional, and biological unit of living organisms. It is also known as the building block of life. The human body consists of millions of cells. These supple the structures of the body. The cell takes up nutrients from the food and converts them into energy. The energy is used to perform many functions of the body. The cell also consists of body’s hereditary material.
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Students have asked these similar questions
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 3 Solutions
Human Anatomy & Physiology (Marieb, Human Anatomy & Physiology) Standalone Book
Ch. 3 - Prob. 1MCCh. 3 - 2. The major types of lipid found in the plasma...Ch. 3 - 3. Membrane junctions that allow nutrients or ions...Ch. 3 - Prob. 4MCCh. 3 - Prob. 5MCCh. 3 - 6. A physiologist observes that the concentration...Ch. 3 - 7. The solute-pumping type of active transport is...Ch. 3 - 8. The endocytotic process in which a sampling of...Ch. 3 - 9. Which is not true of centrioles? (a) They start...Ch. 3 - Prob. 10MC
Ch. 3 - 11. The information sequence that determines the...Ch. 3 - 12. Mutations may be caused by (a) X rays, (b)...Ch. 3 - 13. The phase of mitosis during which centrioles...Ch. 3 - 14. Final preparations for cell division are made...Ch. 3 - 15. The RNA synthesized on one of the DNA strands...Ch. 3 - 16. The RNA species that travels from the nucleus...Ch. 3 - 17. If DNA has a sequence of AAA, then a segment...Ch. 3 - 18. A nerve cell and a lymphocyte are presumed to...Ch. 3 - 19. A pancreas cell makes proteins (enzymes) that...Ch. 3 - 20. Explain why mitosis can be thought of as...Ch. 3 - 21. Contrast the roles of ER-bound ribosomes with...Ch. 3 - Prob. 22SAQCh. 3 - Prob. 23SAQCh. 3 - 24. Comment on the role of the sodium-potassium...Ch. 3 - 25. Differentiate between primary and secondary...Ch. 3 - 26. Cell division typically yields two daughter...Ch. 3 - Prob. 1CAQCh. 3 - 2. A “red-hot” bacterial infection of the...Ch. 3 - 3. Two examples of chemotherapeutic drugs (drugs...Ch. 3 - 4. The normal function of one tumor suppressor...Ch. 3 - 5. In their anatomy lab, many students are exposed...Ch. 3 - 6. Dynein is missing from the cilia and flagella...Ch. 3 - 7. Explain why alcoholics are likely to have much...Ch. 3 - 8. Fresh water is a precious natural resource in...
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