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Anabolism and catabolism are the parts in which the metabolism is divided. Anabolism is a synthesis reaction where energy is consumed. Catabolism is a degradative reaction where energy is released. Although they are two different processes, they work in a coordinated manner.While anabolism builds large molecules from smaller ones, catabolism is a reduction reaction where a complex molecule is converted into a simpler one.The word anabolism comes from the Greek ana, which means ‘upwards’, and ballein, which we can translate as ‘launch’.Anabolism is one of the two parts into which metabolism is divided, which is also known as biosynthesis.Anabolism is a constructive chemical reaction where complex molecules are synthesized from simpler ones that can be organic or inorganic. Thus the molecules can grow and renew, or be stored as energy reserves.This metabolic process of construction, where energy is consumed to obtain large molecules from smaller ones, is possible thanks to the energy contribution of adenosine triphosphate (ATP).In these reactions, the more oxidized compounds are reduced. Through anabolism, living things can form proteins from amino acids and thus maintain body tissues
.Catabolism is a word that comes from the Greek kato, which means ‘down’, and ballein, which means ‘launch’.Catabolism is the part of the metabolic process through which different organic nutrients are degraded, reduced or oxidized to their simplest forms so that the body assimilates them and transforms them into energy. This energy is essential for the functioning of anabolism.The energy that is released is stored in adenosine triphosphate (ATP) molecules, and thus the cell can perform vital actions such as muscle contraction and molecule synthesis.It is a destructive phase of reduction where, from a complex organic molecule, such as carbohydrates and lipids, simpler ones such as H2O, CO2, lactic acid or ammonia are obtained.A catabolic process is digestion, in it large molecular complexes are broken down and transformed into simpler forms so that they can be used as raw material and energy in anabolic processes. Therefore, digestion is essential for anabolism to function properly.
Saladin, K. S. (2018). Anatomy & Physiology: The Unity of Form and Function (8th ed). New York, N.Y., McGraw-Hill Education
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