Which of the following is a reactant of cellular respiration
Water
Energy
Oxygen
Carbon dioxide
The correct answer is Oxygen.
The reactants of cellular respiration are oxygen and glucose. In the presence of oxygen, glucose is broken down in a series of steps to produce energy, carbon dioxide, and water. Therefore, the correct answer is oxygen.
The reactant of cellular respiration is oxygen. To determine the reactant, we need to understand the process of cellular respiration. Cellular respiration is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy (in the form of ATP). The reactants are the substances that are consumed or used up during the reaction.
In this case, glucose is the fuel source, but it is already provided as one of the options. Among the remaining options, water is actually one of the products of cellular respiration, not a reactant. Energy is not a substance that is consumed during the reaction but is rather produced as a result of the reaction. Therefore, the correct answer is oxygen, as it is the substance that is consumed during cellular respiration.