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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_2.htmlkey concept7.1Signals and Signaling Affect Cell Function
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_3.htmlCells receive several types of signals
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_4.htmlA signal transduction pathway involves a signal, a receptor, and responses: Overview
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_6.htmlkey concept7.2Receptors Bind Signals to Initiate a Cellular Response
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_7.htmlReceptors that recognize chemical signals have specific binding sites
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_8.htmlReceptors can be classified by location and function
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_9.htmlIntracellular receptors are located in the cytoplasm or the nucleus
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_11.htmlkey concept7.3The Response to a Signal Spreads through the Cell
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_12.htmlThe cell amplifies its response to ligand binding
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_13.htmlSecond messengers can amplify signals between receptors and target molecules
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_19.htmlSignals can initiate DNA transcription
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_21.htmlkey concept7.5Adjacent Cells in a Multicellular Organism Can Communicate Directly
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_23.htmlPlant cells communicate through plasmodesmata
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_26.htmlInvestigating Life5773f788757a2e3510000000
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_27.htmlChapter Summary
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http://digfir-published.macmillanusa.com/life11e/life11e_ch07_28.htmlApply What Youâve Learned
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