Why is respiration considered an exothermic reaction? Explain

Explanation: 

• Respiration is an exothermic process as it liberates energy during the process.
• It is a process in which the breakdown of C-C bonds of complex compounds (glucose here) through oxidation within the cells is seen.
• It leads to a release of a considerable amount of energy.
• The plants while performing photosynthesis convert the solar energy into chemical energy by forming bonds between the atoms of complex compounds (glucose here) from carbon dioxide and water.
• These compounds when consumed by animals or human beings, liberates energy present between the bonds of these compounds.
• The breakdown of these C-C bonds is possible by their oxidation.

Hence, the respiration is an exothermic process.

Final answer: Respiration is an exothermic process as it liberates a considerable amount of energy through oxidation in the cells.