Which biochemical molecule acts as a secondary messenger in cellular signaling pathways, particularly in the regulation of glycogenolysis and glycolysis?

A cAMP (Cyclic Adenosine Monophosphate) ✓
B cGMP (Cyclic Guanosine Monophosphate)
C ATP (Adenosine Triphosphate)
D NAD+ (Nicotinamide Adenine Dinucleotide)

Explanation

cAMP serves as a secondary messenger in cellular signaling, particularly in the regulation of glycogenolysis and glycolysis, by activating protein kinase A (PKA).

Mnemonic

'c' in cAMP stands for 'cyclic', easy to remember

Source

Biochemistry by Stryer
Fundamentals of Biochemistry Signal Transduction Secondary Messengers Medium MEDICAL Confidence: high