Which of the following is a reactant of cellular respiration? (1 point)

Responses

water.
water.

oxygen.
oxygen.

carbon dioxide.
carbon dioxide.

energy.

oxygen

To determine which of the following is a reactant of cellular respiration, we need to understand what cellular respiration is and what reactants are involved.

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water. It occurs in the mitochondria of eukaryotic cells. In this process, glucose is broken down into carbon dioxide and water, and energy is released in the form of ATP (adenosine triphosphate).

Reactants are the substances that are involved in a chemical reaction and are consumed or changed during the reaction. In the case of cellular respiration, the reactants are glucose and oxygen, as they are both used up in the process.

Therefore, the correct answer is "oxygen."

The reactant of cellular respiration is oxygen.