Anabolic processes are metabolic pathways that construct molecules from smaller units. These processes typically require energy input, often derived from ATP.
Catabolic: Metabolic pathways that break down molecules into smaller units and release energy.
ATP (Adenosine Triphosphate): The primary energy carrier in cells, providing energy for both catabolic and anabolic processes.
Enzyme: Proteins that act as biological catalysts to speed up chemical reactions in metabolic pathways.