Pearson eText Human Physiology: An Integrated Approach -- Instant Access (Pearson+)
8th Edition
ISBN: 9780135212905
Author: Dee Silverthorn
Publisher: PEARSON+
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Chapter 6, Problem 9RQ
Summary Introduction
Introduction: Receptors are defined as the proteins that have specificity to attach a particular class of families called the ligand. Receptors can be present within the cell or on the cell surface. The attachment of the ligand to the receptor induces chemical changes within the cell and alters normal functioning of the cell.
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Contrast receptor down-regulation and receptors desensitization.
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The use of second messengers is an example of a method used in intracellular signaling. (true or false)
Chapter 6 Solutions
Pearson eText Human Physiology: An Integrated Approach -- Instant Access (Pearson+)
Ch. 6.1 - Match the communication method on the left with...Ch. 6.1 - Which signal molecules listed in the previous...Ch. 6.1 - A cat sees a mouse and pounces on it. Do you think...Ch. 6.2 - List four components of signal pathways.Ch. 6.2 - Prob. 5CCCh. 6.2 - What are the four steps of signal transduction?Ch. 6.2 - Prob. 7CCCh. 6.2 - Prob. 8CCCh. 6.2 - Name the four categories of membrane receptors.Ch. 6.2 - Prob. 10CC
Ch. 6.2 - Prob. 11CCCh. 6.2 - Prob. 12CCCh. 6.3 - The extracellular fluid Ca2+ concentration...Ch. 6.3 - Prob. 14CCCh. 6.4 - What do receptors, enzymes, and transporters have...Ch. 6.4 - Prob. 16CCCh. 6.4 - Prob. 17CCCh. 6.5 - What is the difference between tonic control and...Ch. 6.5 - Prob. 19CCCh. 6.5 - What is the difference between local control and...Ch. 6.5 - Name the seven steps in a reflex control pathway...Ch. 6.5 - Prob. 22CCCh. 6.5 - Prob. 23CCCh. 6.5 - Prob. 24CCCh. 6 - What are the two routes for long-distance signal...Ch. 6 - Prob. 2RQCh. 6 - Prob. 3RQCh. 6 - Prob. 4RQCh. 6 - Prob. 5RQCh. 6 - An enzyme known as protein kinase adds the...Ch. 6 - Distinguish between central and peripheral...Ch. 6 - Prob. 8RQCh. 6 - Prob. 9RQCh. 6 - Prob. 10RQCh. 6 - Prob. 11RQCh. 6 - Explain the relationships of the terms in each of...Ch. 6 - List and compare the four classes of membrane...Ch. 6 - Prob. 14RQCh. 6 - Prob. 15RQCh. 6 - Prob. 16RQCh. 6 - Prob. 17RQCh. 6 - Identify the target tissue or organ for each...Ch. 6 - Now identify the integrating center for examples...Ch. 6 - In each of the following situations, identify the...Ch. 6 - Prob. 21RQCh. 6 - Prob. 22RQ
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- Which is useful for long-distance signaling, and why?arrow_forwardG-protein coupled receptors have a GTP-binding domain. True Falsearrow_forwardIntracellular signaling pathways provide multiple opportunities for the amplification of a response to an extracellular signal. Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a True Falsearrow_forward
- when kidney cells secrete low levels of oxygen in the blood they secrete erythropoietin. in this particular signaling pathway (response to low oxygen) the secretion of erythropoietin represents which step of the signal transdution process?arrow_forwardAlthough convergence and divergence is possible in signaling pathways, secondary messengers can inhibit signals of other pathways. True Falsearrow_forwardSecond-messenger systems ultimately bring about the desired cell response by inducing a change in the shape and function of particular designated intracellular proteins. (True or false?)arrow_forward
- How is an extracellular signal converted to an intracellular signal in signal transduction? Give a specific example.arrow_forwardOutline the three general means by which binding of a water soluble extracellular chemical messenger to its matching surface membrane receptor brings about the desired intracellular response.arrow_forwardWhy is the lifetime of second messengers so crucial to signaling efficiency? Example: Genetically engineering a second messenger by increasing its lifetime would decrease the efficiency of its signal in a cell's signaling system.arrow_forward
- FRAP is a technique used to determine the mobility of a molecule in a membrane. Design a FRAP experiment to test the mobility of an insulin receptor. Would you expect the receptor to be more mobile before or after insulin binding?arrow_forwardAfter it has been activated a G-protein _______. moves along the inside of the cell's membrane and activates enzymes binds to its receptor in the cell's nucleus and initiates translation travels in the bloodstream to its target cell and then binds to its receptor binds to a receptor on a nearby cell and then activates multiple proteinsarrow_forwardCompound C is a pharmaceutical agent that blocks AMPK activity. How might compound C influence adaptation following resistance exercise? How might compound C influence adaptation following endurance exercise? Be specific and remember this section is Molecular Signalingarrow_forward
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