The excess energy which a molecule must process to become active is known as the cell Metabolism.
the energy that makes the molecule active is called endothermic energy.. *** molecules gain this energy and they use it to become active and perform all their functions...*
Activation energy is the excess energy that a molecule must possess to become active and is essential for initiating chemical reactions. It represents the minimum energy needed to break bonds in reactant molecules to allow product formation. Svante Arrhenius first introduced this concept in 1888, highlighting its importance in chemical kinetics.
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