Is respiration an endothermic or exothermic process?

Exothermic

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Endothermic

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No exchange of energy

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None of the above

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Solution

The correct option is A Exothermic
$C_{6} H_{12} O_{6} + 6 O_{2} Cellular respiration - ---------- \to 6 C O_{2} + 6 H_{2} O + ATP$

Respiration is an energy releasing, enzymatically controlled process which involves a stepwise breakdown of food substances inside living cells. It releases energy and biochemical intermediates. The energy released is used in the synthesis of ATP. There is a slight increase in temperature during the respiration. Every living cell breaks down its food to release energy. Reactions that involve liberation of energy and increase in temperature are called exothermic reactions. Thus, respiration is exothermic in nature.

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