Into how many processes is metabolism divided
Biology · High School · Mon Jan 18 2021
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Metabolism is divided into two primary processes: catabolism and anabolism.
1. Catabolism: This is the process within a living organism where larger molecules are broken down into smaller ones, releasing energy in the process. Catabolic pathways are those that generate energy by breaking down complex molecules to simpler ones. For example, the digestion of food and the cellular breakdown of glucose in respiration to generate ATP (adenosine triphosphate, the energy currency of the cell) are both catabolic processes.
2. Anabolism: In contrast to catabolism, anabolism is the building-up aspect of metabolism. Anabolic pathways are those that require energy to construct complex molecules from simpler ones. An example would be the synthesis of proteins from amino acids or the construction of a cellular membrane.