A water-soluble hormone binds to its receptor on the plasma membrane. Arrange the events that follow in correct sequence.(1) Alpha subunit-GTP complex alters cell activity(2) GTP binds to the alpha subunit replacing GDP(3) G-protein subunits separate from the receptor(4) Alpha subunit separates from other two subunits(5) G-protein subunits bind to the receptor
A. 5, 4, 2, 1, 3
B. 4, 2, 1, 3, 5
C. 5, 2, 3, 4, 1
D. 5, 2, 1, 4, 3
E. 3, 4, 1, 2, 5
Answer: C
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