SCIENCE
RESPIRATION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -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.
Detailed explanation-2: -Respiration is the chemical process by which organic compounds release energy. The compounds change into different ones by exergonic reactions.
Detailed explanation-3: -Respiration is a chemical change because: Q. What is respiration?
Detailed explanation-4: -During respiration, Carbohydrates present in food are broken down to form glucose. Glucose combines with oxygen in the cells of our body and provides energy. Therefore, respiration is an exothermic reaction.
Detailed explanation-5: -Glucose + Oxygen → Carbon dioxide + Water + ATP.