Final answer:
Anabolic reactions are endergonic, non-spontaneous, and require an input of energy to build larger molecules from smaller ones.
Step-by-step explanation:
Anabolic reactions are favorable, endergonic, and non-spontaneous. These reactions require an input of energy and build larger molecules from smaller ones. An example of an anabolic reaction is the synthesis of proteins by joining amino acids together. On the other hand, catabolic reactions break down larger molecules into smaller ones, release energy, and are exergonic and spontaneous. Examples include the breakdown of glucose during cellular respiration.