AP BIOLOGY

Detailed explanation-1: -Endergonic reactions require energy input to take simple, low energy reactants and build complex, high energy products. Exergonic reactions release the energy bound up in the reactants and yield simpler, low energy products.

Detailed explanation-2: -In metabolism, an endergonic process is anabolic, meaning that energy is stored; in many such anabolic processes energy is supplied by coupling the reaction to adenosine triphosphate (ATP) and consequently resulting in a high energy, negatively charged organic phosphate and positive adenosine diphosphate.

Detailed explanation-3: -Endergonic and exergonic reactions Exergonic reactions are also called spontaneous reactions, because they can occur without the addition of energy. Reactions with a positive ∆G (∆G > 0), on the other hand, require an input of energy and are called endergonic reactions.

Detailed explanation-4: -An exergonic reaction is a reaction that releases free energy. Because this type of reaction releases energy rather than consuming it, it can occur spontaneously, without being forced by outside factors. In chemistry terms, exergonic reactions are reactions where the change in free energy is negative.