Aerobic respiration

Oxygen that has diffused into the blood reacts inside the body cells with simple organic compounds such as glucose, releasing energy. This is cellular respiration.

Respiration

Respiration is the process in which living cells oxidise simple food to release the energy needed for life processes. It is a metabolic process.

glucose + oxygen → carbon dioxide + water + energy

C₆H₁₂O₆ + 6O₂ → 6CO₂ + 6H₂O

energy is released

Aerobic respiration

Respiration that happens when oxygen is present is aerobic respiration.