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Metabolic pathways are a series of chemical reactions catalyzed by enzymes, requiring vitamins and minerals. Enzymes convert substrates into products, determining which pathways occur. The body’s metabolism is divided into anabolism and catabolism, and is affected by temperature and pH level. Other pathways include fatty acid oxidation and the urea cycle.
The metabolic pathway is a series of chemical reactions that occur within a cell. Within each of these pathways, one chemical is transformed into another chemical through a series of steps. These reactions are catalyzed by enzymes and will often require vitamins and minerals to function properly.
One of the first studies of metabolic pathways was conducted by a British physician named Archibald Garrod in 1909. The most important metabolic pathways for humans were found to be glycolysis, the first pathway discovered, the Krebs cycle, oxidative phosphorylation, and gluconeogenesis. The collection of all pathways within the human body is called the metabolic network, and this determines the physiological and biochemical properties of a cell.
Enzymes are considered very important to the metabolic pathway of the body. They act as catalysts in various chemical reactions that occur in the cells of the body. Enzymes convert substrates into various molecules or products. Since enzymes are selective and will only catalyze a few chosen reactions, the set of enzymes produced in a cell determines which metabolic pathways occur in that cell. Enzyme activity can be affected by other molecules; inhibitors will decrease its activity, while activators will increase it.
The body’s metabolism is divided into two phases: anabolism and catabolism. Anabolism uses energy to build the components of a cell, such as proteins, while catabolism involves the breakdown of organic matter. The result of this metabolic process can be stored by cells or used to initiate another metabolic pathway. The metabolic pathway and its activities will also depend on other factors, such as temperature and the chemical environment, also known as the pH level.
The metabolic pathway is generally believed to travel in one direction, and is made up of a series of chemical reactions that are interconnected. These processes allow living organisms to grow and adapt to their environment. The metabolic process will also determine which substances are nutritious and which are poisonous. The speed of metabolism in an organism is also known as the metabolic rate.
Other metabolic pathways that occur in most living organisms include fatty acid oxidation and the urea cycle. In humans, the urea cycle takes place primarily in the liver, and involves the production of urea from ammonia. Fatty acid oxidation is the process in which fat molecules are broken down into free fatty acids and monoglycerides.
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