O Levels Biology (5090)•5090/11/M/J/22

Explanation
Aerobic Respiration Equation Steps:
- Identify aerobic respiration as the process breaking down glucose with oxygen to release energy, producing CO₂ and H₂O.
- Recall the balanced equation: C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O.
- Compare choices to this standard formula for plant cells (same as in animals).
- Eliminate options that match photosynthesis or unbalanced reactions.
Why B is correct:
- It exactly matches the balanced equation for aerobic respiration, showing glucose and oxygen yielding CO₂ and water.
Why the others are wrong:
- A: Represents photosynthesis, the reverse process building glucose from CO₂ and H₂O.
- C: Unbalanced and unrelated; resembles incomplete oxidation, not standard respiration.
- D: Unbalanced, missing the coefficient 6 for CO₂, so it doesn't conserve atoms.
Final answer: B
Topic: Aerobic respiration
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