Which compound is a reactant in cellular respiration? (1 point)

water
oxygen
ATP
carbon dioxide

oxygen

Oxygen is a reactant in cellular respiration.

Oxygen is the compound that is a reactant in cellular respiration. To determine this, we need to have a basic understanding of cellular respiration. Cellular respiration is a metabolic process that takes place in living cells to convert nutrients into energy in the form of adenosine triphosphate (ATP). It can be summarized by the equation:

C6H12O6 (glucose) + 6O2 (oxygen) → 6CO2 (carbon dioxide) + 6H2O (water) + ATP

In this equation, glucose (C6H12O6) and oxygen (O2) are the reactants, while carbon dioxide (CO2), water (H2O), and ATP are the products. So, in the context of the given compounds, oxygen is a reactant in cellular respiration.