Cyclic AMP Functions as _______

Question

Cyclic AMP functions as _______.
A) the first messenger that transmits information to a receptor
B) a second messenger that activates one or more enzymes
C) a hormone that activates DNA
D) one of the principal negative feedback regulators

Accepted Answer

Cyclic AMP functions as a second messenger that activates one or more enzymes. It is produced in response to certain extracellular signals and modulates intracellular signaling pathways by activating protein kinases and other signaling proteins.