An Overview of Intermediary Metabolism and Bioenergetics

The Types of Reaction Catalysed by Enzymes of Intermediary Metabolism 96 

Selected Case Studies — Glycolysis and the Tricarboxylic Acid Cycle 100 

Selected Case Studies Gluconeogenesis and Fatty Acid Biosynthesis 106 

Bioenergetics — Generation of Phosphoryl Transfer Potential at the Expense of Proton Gradients 108 

In contrast, anabolism, often referred to as biosynthesis, consumes energy, rather than producing it, typically taking more oxidised molecules and transforming them into more complex, more highly reduced end products. The reverse process to that described in Equation (1), carried out by many photosynthetic organisms, involves the fixation of atmospheric CO2 to form glucose, catalysed by the enzymes which constitute the Calvin cycle  

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