Human Physiology: An Integrated Approach (8th Edition)
8th Edition
ISBN: 9780134605197
Author: Dee Unglaub Silverthorn
Publisher: PEARSON
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Textbook Question
Chapter 6, Problem 13RQ
List and compare the four classes of membrane receptors for signal pathways. Give an example of each.
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Chapter 6 Solutions
Human Physiology: An Integrated Approach (8th Edition)
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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- Describe how a very small quantity of receptor ligand is capable of eliciting a strong response in a target cell through amplification.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_forwardDescribe one type of receptorarrow_forward
- List and describe the 4 major categories of membrane receptors.arrow_forwardSeparately, draw a table using arrows to depict the appropriate magnitude and direction of the forces and ion fluxes at different membrane potentials for a ligand-gated channel that is equally permeable to both ion X+ and ion Y+. The equilibrium potential for ion X+ is -60 mV, and the equilibrium potential for ion Y+ is -20 mV. Which item (a, b, c, or d) best represents the forces and fluxes for a membrane potential of +20 mV? Upwards arrows means outward direction and downwards arrow means inward direction. The length of the arrow determines the magnitude.arrow_forwardName three features common to the activation of cytokine receptors and receptor tyrosine kinases. Name one difference with respect to the enzyme activity of these receptors.arrow_forward
- In most neurons, membrane depolarization leads to the opening of voltage-dependent ion channels, generation of an action potential, and, ultimately, an influx of Ca2+, which causes release of neurotransmitter at the axon terminus. Devise a cellular strategy by which hyperpolarization in rod cells could produce excitation of the visual pathway and passage of visual signals to the brain. (Hint: The neuronal signaling pathway in higher organisms consists of a series of neurons that relay information to the brain. The signal released by one neuron can be either excitatory or inhibitory to the following, postsynaptic neuron.)arrow_forwardSeparately, draw a table using arrows to depict the appropriate magnitude and direction of the forces and ion fluxes at different membrane potentials for a ligand-gated channel that is equally permeable to both ion X+ and ion Y+. The equilibrium potential for ion X+ is -60 mV, and the equilibrium potential for ion Y+ is -20 mV. Which item best represents the forces and fluxes for a membrane potential of -60 mV? Pick one of the four tables in the included image please for your answer.arrow_forwardDescribe the essential features of a signal-transduction circuitarrow_forward
- Describe three ways in which a gradual increase inan extracellular signal can be sharpened by the target cellto produce an abrupt or nearly all-or-none response.arrow_forwardWhy do different cells respond to the same stimulus in different ways? State three potential outcomes of signal transduction events.arrow_forwardDescribe the four phases of signal transduction in living organisms.arrow_forward
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