O Levels Biology (5090)•5090/12/M/J/23

Explanation
Aerobic respiration word equation Steps:
- Recall aerobic respiration uses oxygen to break down glucose for energy.
- Note the standard word equation: glucose + oxygen → carbon dioxide + water.
- Compare each choice to this equation.
- Identify the matching option as C.
Why C is correct:
- It matches the defining word equation for aerobic respiration, where glucose (C6H12O6) + 6O2 yields 6CO2 + 6H2O + energy.
Why the others are wrong:
- A: Reverses the process, representing photosynthesis instead.
- B: Omits oxygen as a reactant, suggesting incomplete or anaerobic breakdown.
- D: Excludes carbon dioxide, ignoring a key byproduct.
Final answer: C
Topic: Aerobic respiration
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