Choose the incorrect statement. G protein-coupled signaling
A) Muscarine binding to a G protein-coupled receptor results in the release of GDP and binding of GTP by the ? subunit, activation of the amplifier enzyme adenylate cyclase, and formation of cAMP.
B) In anaphyactic shock, administration of epinephrine can be life-saving because cellular responses include binding to both ? and ? receptors, resulting in an elevation of blood pressure and opening of the respiratory airways.
C) The binding of epinephrine to a ? receptor can lead to the intracellular formation of the second messenger molecule cAMP, which can lead to smooth muscle relaxation.
D) Activation of Phospholipase C by the the ? subunit of a G protein can lead to the formation of IP3, which is a second messenger molecule that binds to a nonspecific cation channel on the membrane of the endoplasmic reticulum or sarcoplasmic reticulum.
Choose the incorrect statement. G protein-coupled signaling
A) Muscarine binding to a G protein-coupled receptor results in the release of GDP and binding of GTP by the ? subunit, activation of the amplifier enzyme adenylate cyclase, and formation of cAMP.
B) In anaphyactic shock, administration of epinephrine can be life-saving because cellular responses include binding to both ? and ? receptors, resulting in an elevation of blood pressure and opening of the respiratory airways.
C) The binding of epinephrine to a ? receptor can lead to the intracellular formation of the second messenger molecule cAMP, which can lead to smooth muscle relaxation.
D) Activation of Phospholipase C by the the ? subunit of a G protein can lead to the formation of IP3, which is a second messenger molecule that binds to a nonspecific cation channel on the membrane of the endoplasmic reticulum or sarcoplasmic reticulum.