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Unformatted text preview: 5. Describe the role of plasma-membrane G proteins (Chapter 5, Review Question #9). 6. What are the two general mechanisms by which first messengers elicit an increase in cytosolic calcium concentration? What are the sources of the calcium in each mechanism (Chapter 5, Review Question #12)? 7. How does the calcium-calmodulin system function (Chapter 5, Review Question #13)? 2 8. Describe the manner in which activated plasma-membrane receptors influence gene expression (Chapter 5, Review Question #14). 9. Sketch the pathways for eicosanoid synthesis and briefly describe their major functions. 3...
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