Is atp - adp - atp a chain or a cycle?

ATP- ADT-ADP is a cycle.

Explanation:

Adenosine triphosphate is like a charged battery and Adenosine diphosphate is a dead battery.

ATP is hydrolysed and the ADP and Pi is obtained by the addition of water and in response energy is released.

The ADP can be recharged as a battery and to get converted into ATP by the addition of the inorganic phosphate and this process releases energy and this cycle continues.

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes

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