12: Metabolism and Energy
- Page ID
- 291693
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- 12.1: Energy Metabolism
- Metabolism is the set of life-sustaining chemical transformations within the cells of living organisms. The three main purposes of metabolism are the conversion of food/fuel to energy to run cellular processes, the conversion of food/fuel to building blocks for proteins, lipids, nucleic acids, and some carbohydrates, and the elimination of nitrogenous wastes. These enzyme-catalyzed reactions allow organisms to grow and reproduce, maintain their structures, and respond to their environments.
- 12.1.1: Prelude to Energy Metabolism
- 12.1.2: ATP- the Universal Energy Currency
- 12.1.3: Stage I of Catabolism
- 12.1.4: Overview of Stage II of Catabolism
- 12.1.5: Stage III of Catabolism
- 12.1.6: Stage II of Carbohydrate Catabolism
- 12.1.7: Stage II of Lipid Catabolism
- 12.1.8: Stage II of Protein Catabolism
- 12.1.E: Energy Metabolism (Exercises)
- 12.1.S: Energy Metabolism (Summary)