Explain how the mass of oxygen is conserved during cellular respiration. will give brainliest 

Answer mass is conserved in living systems through the processes of photosynthesis, cellular respiration, and the carbon cycle,; ; ; also, energy is transferred as matter is transformed from one chemical to another, matter is oxidized to carbon dioxide and water during respiration . energy is transferred as matter is broken down into simpler molecules and some energy is converted and released as heat;