Is matter transformed or used up in cellular respiration?

The law of conservation of matter states that matter can never be created nor destroyed on Earth. Therefore, matter is not used up in cellular respiration. Rather, the matter of the reactants of cellular respiration are transformed into the matter of the products of the reaction. During cellular respiration, one glucose and six oxygen gas molecules produce six water compounds, six carbon dioxide compounds, and energy in the form of adenosine triphosphate (ATP). During cellular respiration, the bonds of the reactants are broken and rearranged to form the reactants. In this way, both the products and reactants of cellular respiration consist of six carbon atoms, twelve hydrogen atoms, and eighteen oxygen atoms.

Similarly, the law of conservation of energy states that energy cannot be created nor destroyed.