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## Pathways involved in metabolism - Metabolic pathways can be grouped into two paths - catabolism and anabolism - Catabolic reactions degrade molecules to create smaller molecules and energy - Anabolic reactions synthesize molecules for cell maintenance, growth and reproduction - Catabolism is cha...

## Pathways involved in metabolism - Metabolic pathways can be grouped into two paths - catabolism and anabolism - Catabolic reactions degrade molecules to create smaller molecules and energy - Anabolic reactions synthesize molecules for cell maintenance, growth and reproduction - Catabolism is characterized by oxidation reactions and by release of free energy which is transformed to ATP. Anabolism is characterized by reduction reactions and by utilization of energy accumulated in ATP molecules. - Catabolism and anabolism are tightly linked together by their coordinated energy requirements: catabolic processes release the energy from food and collect it in the ATP; anabolic processes use the free energy stored in ATP to perform work.