Final answer:
ATP (Adenosine Triphosphate) is the common energy currency in living cells that powers most living organisms.
Step-by-step explanation:
The common energy currency in living cells that powers most living organisms is ATP (Adenosine Triphosphate).
ATP is a molecule that stores and releases energy for various cellular processes. It is often referred to as the 'energy currency' of cells because it transfers energy from one chemical reaction to another.
For example, when cells need energy for activities like muscle contraction or enzyme reactions, ATP molecules are broken down into ADP (Adenosine Diphosphate) and inorganic phosphate, releasing energy in the process. This energy is then used to carry out the required cellular functions.
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