Besides energy, what else does respiration produce?
AOxygen gas and glucose
BNitrogen gas and starch
CWater vapour and starch
DCarbon dioxide and water
Answer & Solution
Correct answer: D. Carbon dioxide and water
1. Respiration releases the energy stored in glucose using oxygen.
2. Two other substances are made at the same time as by-products.
3. They are carbon dioxide and water.
4. Oxygen and glucose are used up in respiration rather than made by it.
_Source: Siyavula Natural Sciences Grade 8 (CC BY 4.0), Products of respiration_