Answer:
The correct answer is "Adeynyl Cyclase".
Explanation:
The conversion of Adenosine Triphosphate (ATP) to Cyclic Adenosine Monophosphate (cAMP) in the cells is done by the enzyme named "Adeynyl Cyclase". Later cAMP which is a derivative of ATP is used for transmitting signals between cells. I hope this answer helps.