Welcome to Metabolic Pathways of Biochemistry, the online reference of metabolism for students, scientists, and the world. This site is designed to graphically represent all major metabolic pathways, primarily those important to human biochemistry.

The following reaction pathways represent those which are currently complete and those which are still under construction.

• Carbohydrate Metabolism

  • Glycolysis (3-D)
    • Glycolysis & Gluconeogenesis (3-D)
  • Kreb's - TCA - Citric Acid Cycle (3-D)
  • Pentose Phosphate Pathway (3-D)
  • Glycogen Biosynthesis & Galactose Pathway (3-D)
  • Calvin Cycle
  
  

• Lipid Metabolism

  • Triacylglycerol Metabolism
  • Activation of Fatty Acids (3-D)
  • Beta-Oxidation of Fatty Acids -- even chain
  • Beta-Oxidation of Fatty Acids -- odd chain (3-D)
  • Beta-Oxidation of Polyunsaturated Fatty Acid (3-D)
  • Alpha-Oxidation Pathway
  • De Novo Biosynthesis of Fatty Acids
  • Cholesterol Biosynthesis 1
  
  

• Amino Acid Metabolism

  • Glutamate Reactions
  • Kreb-Henseleit Urea Cycle (3-D)
  • Shikimate Pathway
  • Phenylalanine and Tyrosine Biosynthesis
  • Tryptophan Biosynthesis
  
  

• Energy Metabolism

  • Oxidative Phosphorylation
    • Chemistry of ATP Synthesis
  • Photosynthesis
  • Methane Metabolism
  
  

• Coenzymes (3-D) (2-D & 3-D)