Develop a model to describe how food is rearranged through chemical reactions forming new molecules that release energy as this matter moves through an organism. For example, the total number of atoms of beginning compounds of cellular respiration equals the number of atoms of ending compounds, plus energy. Oxygen is combined with glucose. The substances produce carbon dioxide with water and energy stored in molecules
In cellular respiration, the atoms in glucose and oxygen are rearranged, forming carbon dioxide and water. The cell uses the energy released to produce energy.