Question

question 3
1 pts
question: which of the following is a second messenger commonly involved in g - protein - coupled receptor signaling?
atp
camp
dna
rna

Explanation:

To solve this, we analyze each option:

• ATP is an energy - carrying molecule, not a second messenger in G - protein - coupled receptor (GPCR) signaling.
• cAMP (cyclic adenosine monophosphate) is a well - known second messenger in GPCR signaling. When a G - protein - coupled receptor is activated, it can trigger the production of cAMP, which then relays the signal inside the cell.
• DNA is the genetic material, involved in storing and transmitting genetic information, not in GPCR signaling as a second messenger.
• RNA is involved in processes like transcription and translation, not as a second messenger in GPCR signaling.

Answer:

B. cAMP