Question

Why respiration considered an exothermic reaction ? (3 marks)​

Answer 1

Explanation:

Carbolydrates present in food are broken down to form glucose. This glucose combines with oxygen in the cells of our body and provides energy. This reaction is known as respiration. hence,respiration is considered as an exothermic reaction

Answer 2

Answer:

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It involves the burning of sugar with oxygen, within the cells of every living organism to produce the energy needed for all the reactions of life along with water and carbon dioxide as waste products. Respiration is another exothermic reaction. and this reaction releases energy.