What is the most common second messenger used by hydrophilic hormones?

Question

Quizplus · Accepted Answer

Hydrophilic hormones cannot penetrate the cell membrane and therefore need a second messenger to activate intracellular signaling pathways. The most common second messenger used by hydrophilic hormones is cyclic AMP (cAMP), which is generated by the activation of adenylyl cyclase. Calcium is also a common second messenger used in cell signaling, but it is not specific to hydrophilic hormones. Chromatin and messenger RNA are not second messengers used in cell signaling.

What Is the Most Common Second Messenger Used by Hydrophilic