Which of the following represents the overall reaction for aerobic respiration?
1) C₆H₁₂O₆ + 6 H₂O 6 CO₂ + 6 O2
2) C₆H₁₂O₆ + 6 O2 6 CO₂ + 6 H₂O
3) C₆H₁₂O₆ + 6 CO₂ 6 O2 + 6 H₂O
4) 6 CO₂ + 6 H₂O C₆H₁₂O₆ + 6 O2
5) 6 O2+ 6 H₂O C₆H₁₂O₆ + 6 CO₂