Question

why does respiration considered as an exothermic reaction explain

Answer 1

:Respiration is considered as an exothermic reaction because in respiration oxidation of glucose takes place which produces large amount of heat energy. This is shown in following chemical equation.

Answer 2

During respiration, glucose molecules are converted to other molecules in a series of steps. They finally end up as carbon dioxide and water. The reactionis exothermic because the C=O and O-H bonds in the products are so much more stable than the bonds in the reactants