Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
11th Edition
ISBN: 9780133910605
Author: Gerald Audesirk, Teresa Audesirk, Bruce E. Byers
Publisher: PEARSON
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Textbook Question
Chapter 9.6, Problem 1HYEW
The saliva of dogs, like the saliva of most mammals (including humans), contains enzymes, antibacterial compounds, and growth factors. When a dog licks a wound, it not only cleans out some of the dirt and kills some of the bacteria that may have entered, but also leaves growth factors behind. The growth factors speed up the synthesis of cyclins, thereby stimulating the division of cells that regenerate the skin, helping to heal the wound more rapidly.
Why Dogs Lick Their Wounds?
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Platelet-derived growth factor (PDGF) is, as its name suggests, stored in and secreted by platelets. Platelets release PDGF in the vicinity of wounds as part of their participation in the clotting response. PDGF, in turn, stimulates the proliferation of nearby fibroblasts, which help in the wound healing process. When, however, the PDGF gene is mutated or inappropriately expressed, it can lead to cancer. Why, then, does the wound healing response not lead to similar uncontrolled cell division?
Tim scraped his knee during a fall and it needs to be repaired. The closest skin cells begin sending out growth factors through paracrine signaling to tell all nearby skin cells to start replicating to repair the damaged area.
What are the next steps once the message is sent?
The growth factors are packaged into a vesicle and secreted from a cell that acts upon all nearby cells. The cells start dividing.
The growth factors are packaged into a vesicle and secreted from a cell that acts upon target cells near and far. The cells start mitosis.
The growth factors are packaged into a vesicle and secreted from a cell that acts upon only a target nearby cell. The cell starts swelling up.
The growth factors are packaged into a vesicle and embedded into the plasma membrane where it is detected by other cells. The cells produce more proteins.
Regarding chronic disease prevention, match each term with the phrase that best describes it
Molecule produced by innate immune cells
that is involved in maintaining chronic
inflammation
A protein produced by the liver that is a
frequently used marker of chronic
inflammation
The degree to which a certain food elevates
blood glucose after it's eaten
A small molecule that can bind to histones
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chromosomes after each cell division, thus
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Interleukin-6
TNF-alpha
Methyl Tag
Glycemic Load
C Reactive Protein
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Chapter 9 Solutions
Biology: Life on Earth with Physiology Plus Mastering Biology with Pearson eText -- Access Card Package (11th Edition)
Ch. 9.1 - describe the types of cells found in a...Ch. 9.1 - describe the functions of cell division in...Ch. 9.2 - describe the prokaryotic cell cycle and the major...Ch. 9.3 - describe the structure of a eukaryotic chromosome?Ch. 9.3 - describe the functions of telomeres and...Ch. 9.4 - Body, Heal Thyself Ligaments and tendons have a...Ch. 9.4 - describe the events of the eukaryotic cell cycle?Ch. 9.4 - explain the difference between mitotic cell...Ch. 9.5 - Body, Heal Thyself The precision of mitotic cell...Ch. 9.5 - describe the steps of mitotic cell division?
Ch. 9.5 - What would the consequences be if one set of...Ch. 9.5 - describe the usual outcome of mitotic cell...Ch. 9.5 - Prob. 3CYLCh. 9.6 - Body, Heal Thyself Bartolo Colns physicians wanted...Ch. 9.6 - Prob. 1CTCh. 9.6 - describe the interactions among growth factors,...Ch. 9.6 - Yesterday, when Daniel was showering after a...Ch. 9.6 - The saliva of dogs, like the saliva of most...Ch. 9.6 - What would happen if a cell suffered a mutation...Ch. 9.6 - explain how a cell protects against producing...Ch. 9 - Most nerve cells in the adult human central...Ch. 9 - The genetic material of all living organisms is...Ch. 9 - A cell that remains capable of dividing throughout...Ch. 9 - Diagram and describe the eukaryotic cell cycle....Ch. 9 - Prob. 2ACCh. 9 - Prokaryotic cells divide by a process called...Ch. 9 - Prob. 2MCCh. 9 - Prob. 2RQCh. 9 - Prob. 3FIBCh. 9 - Prob. 3MCCh. 9 - Prob. 3RQCh. 9 - Prob. 4FIBCh. 9 - How does prokaryotic fission differ from...Ch. 9 - Define the following terms: centromere, telomere,...Ch. 9 - The four phases of mitosis are _________,...Ch. 9 - Prob. 5MCCh. 9 - Prob. 5RQCh. 9 - Prob. 6FIBCh. 9 - Prob. 6RQCh. 9 - Prob. 7RQ
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