Which of the following statements about the beta-adrenergic receptor signaling s

Question

Which of the following statements about the beta-adrenergic receptor signaling system is correct? Epinephrine binding the p adrenergic receptor activates Gs alpha by replacement of GDP for GTP. Activated Gs alpha activates phopholipase C resulting in the release of inositol trisphosphate (IP3). Ca^2+ is released from the endoplasmic reticulum (ER) Ca^2+ and diacylglycerol activate protein kinase C (PKC). Epinephrine binding the beta-adrenergic receptor activates Gs alpha by replacement of GDP for GTP. Activated Gs alpha activates adenylyl cylase resulting in the synthesis of cAMP. cAMP activates protein kinase A (PKA) Insulin binding the beta-adrenergic receptor activates Gs alpha by replacement of GDP for GTP. Activated Gs alpha activates adenylyl cylase resulting in the synthesis of cAMP. cAMP activates protein kinase A (PKA) Insulin binding the beta-adrenergic receptor activates Gs alpha by replacement of GDP for GTP. Activated Gs alpha activates phopholipase C resultin

Explanation / Answer

Ans-Epinephrine binding the beta -aderenergic receptor or GPCR activates GsAlpha by by repacement of GDP for GTP activates adenylyl cyclase resulting in the synthesis of cAMP, cAMP activates protein kinase A (PKA).

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