Question

What enzyme deactivates cAMP?

What does it hydrolyze it to?
a) Phosphodiesterase; AMP
b) Carbonic anhydrase; CO2
c) Lipase; Fatty acids
d) Aminotransferase; Amino acids

Answer 1

Phosphodiesterase is the enzyme responsible for deactivating cAMP by converting it into AMP, thus ending the signal transduction process.

Step-by-step explanation:

The enzyme that deactivates cyclic AMP (cAMP) is phosphodiesterase. It hydrolyzes cAMP into adenosine monophosphate (AMP), thereby terminating the signaling cascade initiated by hormones like epinephrine and glucagon.