Final answer:
Anabolic pathways are metabolic pathways that include synthetic reactions, building more complex molecules out of smaller ones. They require energy and involve a series of chemical reactions.
Step-by-step explanation:
Anabolic pathways are metabolic pathways that include synthetic reactions. These pathways build more complex molecules out of smaller ones, requiring energy. They involve a series of chemical reactions that modify a starting molecule step-by-step, eventually yielding a final product. Catabolic pathways, on the other hand, break down more complex molecules into smaller ones, producing energy.