Assertion: Respiration is an endothermic process.
Reason: Glucose formed from carbohydrates of food combines with oxygen in cells of our body and provides energy.
Choose the correct option out of the following.
Answer & explanation
Correct answer: option 4
The correct answer is option 4. Assertion is incorrect but reason is correct.
Respiration is an exothermic process. During digestion, food is broken down into simpler substances. For example, rice, potatoes and bread contain carbohydrates. These carbohydrates are broken down to form glucose. This glucose combines with oxygen in the cells of our body and provides energy.
C6H12O6(aq) + 6O2(aq) → 6CO2(aq) + 6H2O(l) + energy