Metabolism is every chemical reaction in the body, running in two directions — one builds molecules and stores energy, the other breaks them down and releases it. Switch between them.
Catabolism
Metabolismbuild up · break down
ATP is the cell's energy currency — catabolism charges it (ADP → ATP), anabolism and all cell work spend it (ATP → ADP).
📷 Reference image
A real labeled figure to compare with the interactive above.
Anabolism & Catabolism — OpenStax, CC BY 4.0 (via Wikimedia Commons)