The cellular action of many hormones is exerted via the activation of intracellular second messenger agents. The first hormone second messenger agent to be discovered was:

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Physiology Test Question

The cellular action of many hormones is exerted via the activation of intracellular second messenger agents. The first hormone second messenger agent to be discovered was:

	(A) Calcium ion (Ca²⁺)
	(B) 3',5'-Cyclic adenosine monophosphate (cyclic AMP or cAMP)
	(C) Cyclic guanosine monophosphate (cGMP)
	(D) Inositol trisphosphate (IP₃)
	(E) Diacylglycerol (DAG)

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Posted: Saturday, October 10, 2015
Last updated: Saturday, October 10, 2015