Cellular metabolism
Cellular Metabolism
Cellular metabolism (pronunciation: /sɛˈljʊlər mɪˈtæbəlɪzəm/) is the set of chemical reactions that occur within the cells of living organisms to sustain life. These processes allow organisms to grow and reproduce, maintain their structures, and respond to their environments.
Etymology
The term "cellular metabolism" is derived from the Greek words "kýttaros" (meaning "cell") and "metabole" (meaning "change"). It refers to the changes that occur within cells to maintain life.
Related Terms
- Anabolism: The process of building up or synthesizing compounds in the body, usually through the use of energy.
- Catabolism: The process of breaking down compounds in the body, usually resulting in the release of energy.
- Enzymes: Proteins that act as catalysts in biochemical reactions.
- Metabolic Pathway: A series of chemical reactions within a cell, where the product of one reaction serves as the substrate for the next.
- Adenosine Triphosphate (ATP): The main energy currency of cells.
- Glycolysis: The metabolic pathway that converts glucose into pyruvate, releasing energy.
- Krebs Cycle: Also known as the citric acid cycle or the tricarboxylic acid cycle, it is a series of chemical reactions used by all aerobic organisms to release stored energy.
- Oxidative Phosphorylation: The metabolic pathway in which cells use enzymes to oxidize nutrients, thereby releasing energy which is used to produce ATP.
See Also
External links
- Medical encyclopedia article on Cellular metabolism
- Wikipedia's article - Cellular metabolism
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