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By respiration , an organism obtains energy by oxidising nutrients and it releases waste products. - Exothermic reaction is a reaction in which energy is released in the form of heat. When digestion occurs in our body, the food particles are broken down to simpler molecules through a series of reactions . Respiration is a reaction or process in which the food or carbohydrate in our body is converted into glucose, and this glucose combines with oxygen in the cells to provide energy to our body. So the energy is released, hence it is considered as an exothermic reaction and this reaction is spontaneously occurring in our body. During digestion, food is broken down into simpler substances such as carbohydrates. These carbohydrates are broken down to form glucose. Glucose combines with oxygen in the cells and provides energy. The special name of this reaction is respiration . As energy is released in this process, it is an exothermic process. Learn why respiration is an exothermic reaction . Understand how energy is released during cellular respiration with examples and simple explanations .
