Question

physical changरेस्पिरेशन इन ऑर्गेनाइज्म्स ​

Answer 1

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respiration is a chemical change. Oxygen is taken during the respiration,the output should be also the oxygen in order to make it a physical change. But,the output is carbon dioxide which is completely different from the oxygen.

Answer 2

Physical change Respiration in organisms

Respiration is a chemical change as new substances like carbon dioxide and water are formed. Also there is change in the mass as glucose is oxidised by oxygen and heat is released. This change is permanent. All these factors conclude that respiration is a chemical change.

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