Biology 2e
2nd Edition
ISBN: 9781947172517
Author: Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher: OpenStax
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Textbook Question
Chapter 9, Problem 26CTQ
Cells grown in the laboratory are mixed with a dye molecule that is unable to pass through the plasma membrane. If a ligand is added to the cells, observations show that the dye enters the cells. What type of receptor did the ligand bind to on the cell surface?
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Compare/contrast intracellular vs. plasma membrane receptors. Where is each receptor located, and what type of signal molecule binds to each receptor?
Which of the following does not apply to a transmembrane receptor?
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It lacks ER signal sequence.
b.
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c.
It is important for cells to receive and transmit extracellular signals.
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It is an example of integral membrane protein.
when a chemical messenger (or ligand) reaches a target cell, it binds to a receptor. A hydrophobic ligand binds to a(n) _______, whereas a hydrophilic ligand binds to a(n)_________.
a.
agonist receptor; antagonic receptor
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transmembrane receptor; intracellular receptor
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antagonist receptor; agonist receptor
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intracellular receptor; transmembrane receptor
Chapter 9 Solutions
Biology 2e
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