7. The following happens when a G-protein-coupled receptor activates a G protein? A. The B subunit exchanges its bound GDP for GTP. B. The GDP bound to the a subunit is phosphorylated to form bound GTP. C. The a subunit exchanges its bound GDP for GTP. D. It activates the a subunit and inactivates the By complex. 8. Which of the following statements is true? A. MAP kinase is important for phosphorylating MAP kinase kinase. B. PI 3-kinase phosphorylates a lipid in the plasma membrane C. Ras becomes activated when an RTK phosphorylates its bound GDP to create GTP D. STAT proteins phosphorylate JAK proteins, which then enter the nucleus and activate gene transcription 9. A cell can crawl through a tissue because of the proteins that can transmembrane bind to fibronectin outside of the cell. A. Integrin B. Collagen C. Gap junction D. Claudin
7. The following happens when a G-protein-coupled receptor activates a G protein? A. The B subunit exchanges its bound GDP for GTP. B. The GDP bound to the a subunit is phosphorylated to form bound GTP. C. The a subunit exchanges its bound GDP for GTP. D. It activates the a subunit and inactivates the By complex. 8. Which of the following statements is true? A. MAP kinase is important for phosphorylating MAP kinase kinase. B. PI 3-kinase phosphorylates a lipid in the plasma membrane C. Ras becomes activated when an RTK phosphorylates its bound GDP to create GTP D. STAT proteins phosphorylate JAK proteins, which then enter the nucleus and activate gene transcription 9. A cell can crawl through a tissue because of the proteins that can transmembrane bind to fibronectin outside of the cell. A. Integrin B. Collagen C. Gap junction D. Claudin
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:7. The following happens when a G-protein-coupled
receptor activates a G protein?
A. The B subunit exchanges its bound GDP for GTP.
B. The GDP bound to the a subunit is phosphorylated to form bound GTP.
C. The a subunit exchanges its bound GDP for GTP.
D. It activates the a subunit and inactivates the By complex.
8. Which of the following statements is true?
A. MAP kinase is important for phosphorylating MAP kinase kinase.
B. PI 3-kinase phosphorylates a lipid in the plasma membrane
C. Ras becomes activated when an RTK phosphorylates its bound GDP to create GTP
D. STAT proteins phosphorylate JAK proteins, which then enter the nucleus and activate
gene transcription
9. A cell can crawl through a tissue because of the
proteins that can
transmembrane
bind to fibronectin outside of the cell.
A. Integrin
B. Collagen
C. Gap junction
D. Claudin
10. Which of the following genetic changes cannot
convert a proto-oncogene into an oncogene
A. A mutation that introduces a stop codon immediately after the codon for the initiator
methionine.
B. A mutation within the coding sequence that makes the protein hyperactive.
C. An amplification of the number of copies of the proto-oncogene, causing
overproduction of the normal protein.
D. A mutation in the promoter of the proto-oncogene, causing the normal protein to be
transcribed and translated at an abnormally high level.
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