Final answer:
An endergonic reaction requires an input of energy rather than releasing energy. One example is the breakdown of sucrose into its constituent monosaccharides through a hydrolysis reaction.
Step-by-step explanation:
An endergonic reaction requires an input of energy rather than releasing energy. The products of endergonic reactions have a higher energy state than the reactants, and these reactions are non-spontaneous. One example of an endergonic reaction is the breakdown of sucrose. Sucrose (a disaccharide) can be broken down into its constituent monosaccharides (glucose and fructose) through a hydrolysis reaction. This reaction requires an input of energy to break the bonds between the sugar molecules.