12. Which statement regarding cell-surface receptors is correct? A) lon-channel-coupled receptor alter the membrane potential directly by changing the permeability of the plasma membrane. B) G-protein-coupled receptors are polypeptides with seven transmembrane domains. C) After binding their ligand, G-protein-coupled receptors interact with intracellular GTP-binding proteins, later initiating signal transduction events. D) All of the above E) None of the above
12. Which statement regarding cell-surface receptors is correct? A) lon-channel-coupled receptor alter the membrane potential directly by changing the permeability of the plasma membrane. B) G-protein-coupled receptors are polypeptides with seven transmembrane domains. C) After binding their ligand, G-protein-coupled receptors interact with intracellular GTP-binding proteins, later initiating signal transduction events. D) All of the above E) None of the above
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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
Transcribed Image Text:12. Which statement regarding cell-surface receptors is correct?
A) lon-channel-coupled receptors alter the membrane potential directly by changing the permeability of the plasma
membrane.
B) G-protein-coupled receptors are polypeptides with seven transmembrane domains.
C) After binding their ligand, G-protein-coupled receptors interact with intracellular GTP-binding proteins, later
initiating signal transduction events.
D) All of the above
E) None of the above
Explanation:
Answer:
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