Body chemistry, referring to the sum of all chemical processes happening within a living organism, is primarily called metabolism.
Metabolism encompasses all the chemical reactions that occur within the body to maintain life. It involves a complex interplay of processes where substances are transformed into other substances, allowing the body to function, grow, repair itself, and respond to its environment.
Key Aspects of Metabolism
Metabolism can be broadly divided into two main processes:
- Catabolism: This involves the breakdown of complex molecules into simpler ones, releasing energy. For example, the breakdown of glucose to produce energy.
- Anabolism: This involves the building of complex molecules from simpler ones, requiring energy. For example, the synthesis of proteins from amino acids.
Molecules Central to Metabolism
The three main groups of molecules that are central to metabolism are:
- Carbohydrates: Provide energy for the body.
- Lipids (Fats): Store energy and play a role in cell structure and hormone production.
- Proteins: Involved in various functions including enzyme catalysis, structural support, and transport.
Why "Metabolism" is Used
The term "metabolism" originates from the Greek word for "change," appropriately reflecting the dynamic and constantly changing nature of the chemical processes within the body.
