| Term | Definition |
| UDPG Pyrophosphorylase | Forms active glucose from G-1-P and UTP |
| Hexokinase | Forms G-6-P from free glucose in most cells with broader specificity; Also forms Fructose-6-P from free fructose in adipose tissue |
| Glucokinase | Forms G-6-P from free glucose only in the liver |
| Phosphoglucoisomerase (Phospohexoisomerase) | Forms F-6-P from G-6-P |
| Phosphofructokinase | Forms F-1,6-BisP from F-6-P |
| Aldolase | Forms DHAP or Glyceraldehyde-3-P |
| PhosphoTriose Isomerase | Forms glyceraldehyde-3-P from DHAP |
| Glyceraldehyde-3-P Dehydrogenase | Forms Glycerate-1,3-BisP from Glyceraldehyde-3-P |
| Phosphoglycerate Kinase | Forms Glycerate-3-P from Glycerate-1,3-P |
| Phosphoglycerate Mutase | Forms Glycerate-2-P from Glycerate-3-P |
| Enolase | Forms Phosphoenol Pyruvate from Glycerate-3-P |
| Pyruvate Dehydrogenase | Forms acetyl CoA from pyruvate |
| Lactate Dehydrogenase | Forms Lactate from Pyruvate |
| Pyruvate Carboxylase | Forms Oxaloacetate from Pyruvate |
| Glucose-6-Phosphate Dehydrogenase | Forms 6-Phospoglucono-lactone from G-6-P |
| Gluconolactonase | Forms Gluconate-6-P from 6-Phospoglucono-lactone |
| Gluconate-6-Phosphate Dehydrogenase | Forms Ribulose-5-P from Gluconate-6-P |
| Epimerase | Forms Xylulose-5-P from Ribulose-5-P |
| Isomerase | Forms Ribose-5-P from Ribulose-5-P |
| Transketolase | Transfers 2 Carbons; e.g. Forms Sedoheptulose-7P and Gly-3-P from Xylulose-5-P and Ribose-5-P |
| Transaldolase | Transfers 3 Carbons; e.g. Forms Erythrose-4-P and Fructose-6-P from Sedoheptulose-7P and Gly-3-P |
| Phosphofructoaldolase B | Forms Glyceraldehyde from Fructose-1-P |
| Fructokinase | Forms Fructose-1-P from free Fructose in liver |
| Galactose-1-Phosphate Uridyl Transferase | Forms UDP-Galactose from Galactose-1-P and UDP-Glucose |
| Glucose-6-Phosphatase | Forms free glucose from Glucose-6-P |
| Fructose-1,6-Bisphosphatase | Forms Fructose-6-P from Fructose-1,6-BisP |
| Phosphoenolpyruvate Carboxykinase | Forms phosphoenol pyruvate from oxaloacetate |
| Glycogen Phosphorylase | Cleaves G-1-P from the non-reducing end of glycogen in a step-wise fashion. A is active form; B is inactive form |
| Debranching Enzyme | Removes three of last four remaining glucose residues from glycogen branch to other end of stub |
| Glucosidase | Hydrolysis of remaining glucose residue from branch of glycogen |
| Phosphogluco Mutase | Forms G-6-P from G-1-P |
| Branching Enzyme | Transfers 7 glucose residues from alpha-1,4 glycogen polymer to form an alpha-1,6 growing branch |
| Glycogen Synthase | Adds glucose residues to growing glycogen one at a time using UDPG |
| Phosphorylase Kinase | When phosphorylated, activates glycogen phosphorylase through covalent modulation by adding Phosphate group |
| Protein Phosphatase I (PP1) | Cleaves phospate group, deactivating glycogen phosphorylase and activating glycogen synthase |
| Protein Kinase | Deactivates glycogen synthase by phosphorylation |
| Acyl-CoA Synthetase | Forms Acyl-S-CoA from fatty acid, ATP, and CoA |
| Carnitine Acyltransferase | Shuttles fatty acids into mitochondria |
| Acyl CoA Dehydrogenase | Oxidizes fatty acyl-CoA using FAD to a double bond between alpha and beta carbons |
| Enoyl-CoA Hydratase | Hydrates fatty acyl-CoA to a hydroxy group on beta carbon |
| Beta hydroxyl acyl CoA Dehydrogenase | Oxidizes fatty acyl-CoA using NAD to a keto group on the beta carbon |
| Beta ketothiolase | Cleaves ketoacyl CoA using CoASH as a substrate. Reduces fatty acid by 2 carbons |
| Acetyl CoA Carboxylase | Converts acetyl-CoA to malonyl-CoA in fatty acid synthesis |
| Fatty Acid Synthase | Multi-active site enzyme that creates fatty acids using subsequent steps of condensation, reduction, dehydration, and reduction |
| ATP Citrate Lyase | Breaks citrate to acetyl CoA and oxaloacetate using ATP, releasing acetyl CoA into cytoplasm |
| HMG-CoA Lyase | Forms acetoacetate in ketogenic pathway; rate-limiting enzyme and first committed step |
| Pyruvate Kinase | Forms Pyruvate from Phosphoenol pyruvate |