Which of the following is a reactant of cellular respiration?
Water
Energy
Oxygen
Carbon dioxide
Oxygen
Oxygen is one of the reactants of cellular respiration.
To determine the reactant of cellular respiration, we need to understand the process and the substances involved. Cellular respiration is the process by which cells break down glucose molecules to produce energy. It occurs in the presence of oxygen and releases carbon dioxide and water as byproducts.
In this case, the correct answer is oxygen. Oxygen is required as a reactant in cellular respiration because it serves as the final electron acceptor in the electron transport chain, a critical step in the process. Without oxygen, the process of cellular respiration would not proceed efficiently, and energy production would be significantly reduced.
To arrive at this answer, you can recall the basic knowledge of cellular respiration and the role of oxygen in the process. Alternatively, you can also search online for reliable sources such as scientific articles or textbooks that explain cellular respiration and its reactants.