Cells break down large molecules (mostly carbs and fats) to release energy. In anabolism, small molecules change into larger, more complex molecules of carbohydrates, protein, and fat.Ĭatabolism (pronounced: kuh-TAB-uh-liz-um), or destructive metabolism, is the process that produces the energy needed for all activity in the cells. It supports the growth of new cells, the maintenance of body tissues, and the storage of energy for future use. breaking down body tissues and energy stores to get more fuel for body functions (called catabolism)Īnabolism (pronounced: uh-NAB-uh-liz-um), or constructive metabolism, is all about building and storing.building up body tissues and energy stores (called anabolism).Metabolism is a balancing act involving two kinds of activities that go on at the same time: During these processes, the energy from these compounds can be released for use by the body or stored in body tissues, especially the liver, muscles, and body fat. These compounds are absorbed into the blood, which carries them to the cells.Īfter they enter the cells, other enzymes act to speed up or regulate the chemical reactions involved with "metabolizing" these compounds. The body can use sugar, amino acids, and fatty acids as energy sources when needed. turn carbohydrates into simple sugars (for example, glucose). How Does Metabolism Work?Īfter we eat food, the digestive system uses enzymes to: Thousands of metabolic reactions happen at the same time - all regulated by the body - to keep our cells healthy and working. Specific proteins in the body control the chemical reactions of metabolism. Our bodies need this energy to do everything from moving to thinking to growing. Metabolism (pronounced: meh-TAB-uh-liz-um) is the chemical reactions in the body's cells that change food into energy.
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