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**Question 4** G coupled proteins are activated by: - a. glucose - b. glutathione - c. GTP - d. GDP - e. all of the above **Explanation:** G coupled proteins, also known as G-protein-coupled receptors (GPCRs), are primarily activated by GTP (guanosine triphosphate), a process where GDP (guanosine diphosphate) is exchanged for GTP in the G-protein. This activation is fundamental in various signal transduction pathways.

**Question 4** G coupled proteins are activated by: - a. glucose - b. glutathione - c. GTP - d. GDP - e. all of the above **Explanation:** G coupled proteins, also known as G-protein-coupled receptors (GPCRs), are primarily activated by GTP (guanosine triphosphate), a process where GDP (guanosine diphosphate) is exchanged for GTP in the G-protein. This activation is fundamental in various signal transduction pathways.

Human Anatomy & Physiology (11th Edition)
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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**Question 4** G coupled proteins are activated by: - a. glucose - b. glutathione - c. GTP - d. GDP - e. all of the above **Explanation:** G coupled proteins, also known as G-protein-coupled receptors (GPCRs), are primarily activated by GTP (guanosine triphosphate), a process where GDP (guanosine diphosphate) is exchanged for GTP in the G-protein. This activation is fundamental in various signal transduction pathways.
Transcribed Image Text:**Question 4** G coupled proteins are activated by: - a. glucose - b. glutathione - c. GTP - d. GDP - e. all of the above **Explanation:** G coupled proteins, also known as G-protein-coupled receptors (GPCRs), are primarily activated by GTP (guanosine triphosphate), a process where GDP (guanosine diphosphate) is exchanged for GTP in the G-protein. This activation is fundamental in various signal transduction pathways.
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