Adjective
(biochemistry) of a process accompanied by or requiring the absorption of energy; the products of the process are of greater free energy than the reactants
Source: WordNetphotosynthesis is an endergonic process Source: Internet
A reaction is said to be exergonic if the final state is lower on the energy scale than the initial state; in the case of endergonic reactions the situation is the reverse. Source: Internet
Functions in cells Metabolism, synthesis, and active transport ATP is consumed in the cell by energy-requiring (endergonic) processes and can be generated by energy-releasing (exergonic) processes. Source: Internet