Question

Water-soluble hormones bind to plasma membrane receptors, which initiate a signal transduction pathway with which of the following processes? Check all that apply. Check All That Apply First messenger hormone docking with plasma receptorFirst messenger hormone docking with plasma receptor Activated protein kinase enzymesActivated protein kinase enzymes Second messenger pathways including G proteins and phospholipase CSecond messenger pathways including G proteins and phospholipase C

Answer 1

Answer:

Water soluble hormones bind to a cell surface localized receptor  initiating a signaling cascade using intracellular second messengers for example epinephrine.

Hormone binding activates the G-protein and G-protein activates the adenylyl cylase and it catalyzed the conversion of ATP to cAMP which is second messenger in this pathway. cAMP activate the protein kinase and then protein kinase activate certain cytoplasmic protein which alter the activity of cell.