Campbell Biology, Bio 101
18th Edition
ISBN: 9781323741665
Author: Reece
Publisher: Pearson Education
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Chapter 50.4, Problem 2CC
Summary Introduction
To explain: How is the amplification of signals (increase in signal strength during signal transduction) is beneficial in olfaction.
Concept introduction: GPCRs (G protein coupled receptors) are the membrane receptors that are most diverse and largest membrane receptors in case of the eukaryotes. In all the animals, for the purpose of feeding behavior, the chemical senses are essential. Perceptions of smell (olfaction) depends upon the chemoreceptors.
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Pathways involving G proteins provide an opportunityfor an increase in signal strength in the course of signaltransduction, a change referred to as amplification.How might this be beneficial in olfaction?
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Chapter 50 Solutions
Campbell Biology, Bio 101
Ch. 50.1 - Which one of the five categories of sensory...Ch. 50.1 - Prob. 2CCCh. 50.1 - Prob. 3CCCh. 50.2 - How are otoliths adaptive for burrowing mammals,...Ch. 50.2 - Prob. 2CCCh. 50.2 - Prob. 3CCCh. 50.2 - Prob. 4CCCh. 50.3 - Contrast the light-detecting organs of planarians...Ch. 50.3 - Prob. 2CCCh. 50.3 - Prob. 3CC
Ch. 50.3 - Prob. 4CCCh. 50.4 - Explain why some taste receptor cells arid all...Ch. 50.4 - Prob. 2CCCh. 50.4 - Prob. 3CCCh. 50.5 - Contrast the role of Ca2+ in the contraction of a...Ch. 50.5 - Prob. 2CCCh. 50.5 - Prob. 3CCCh. 50.6 - Contrast swimming and flying in terms of the main...Ch. 50.6 - MAKE CONNECTIONS. Peristalsis contributes to the...Ch. 50.6 - WHAT IF? When using your arms to lower yourself...Ch. 50 - Sensory receptors transduce stimulus energy and...Ch. 50 - How are music volume and pitch encoded in signals...Ch. 50 - Prob. 50.3CRCh. 50 - Prob. 50.4CRCh. 50 - What are two major functions of ATP hydrolysis in...Ch. 50 - Which of the following sensory receptors is...Ch. 50 - The middle ear converts (A) air pressure waves to...Ch. 50 - Prob. 3TYUCh. 50 - Which sensory distinction is not encoded by a...Ch. 50 - The transduction of sound waves into action...Ch. 50 - Although some sharks close their eyes just before...Ch. 50 - Prob. 7TYUCh. 50 - EVOLUTION CONNECTION In general, locomotion on...Ch. 50 - Prob. 9TYUCh. 50 - WRITE ABOUT A THEME: ORGANIZATION In a short essay...Ch. 50 - SYNTHESIZE YOUR KNOWLEDGE Bloodhounds, which are...
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- What are two common ways by which signal transduction pathwaysenhance the activity of specific enzymes?arrow_forwardUnder what conditions might receptor up-regulation occur? receptor down-regulation?arrow_forwardWhat is signal transduction? Illustrate and describe the molecular events in signal transduction pathways involving 1) G-protein-coupled receptors and 2) enzyme linked receptors.arrow_forward
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- describe how signal amplification is accomplished in target cellarrow_forwardContrast signal amplification with signal termination.arrow_forwardImagine a disease that involves reduced expression of receptor X. There is no concentration of full agonist that can restore receptor X signaling back to normal levels. Explain how an allosteric modulator may be used to help in this situation.arrow_forward
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