Final answer:
Adenosine triphosphate (ATP) is a crucial energy carrier in cells, serving as the 'molecular unit of currency' for energy transfer.
Explanation:
Adenosine triphosphate (ATP) is a nucleoside triphosphate that serves as the energy-carrying molecule in cells. It is often referred to as the "molecular unit of currency" of intracellular energy transfer. ATP is classified as a high energy compound due to the two covalent bonds between its three phosphates, storing significant potential energy used to fuel various cellular activities.
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