Humans need to take in food for energy. Food is a type of fuel that can react with other substances in our bodies to release energy. This process is known as metabolism. When food is broken down through digestion, it reacts with oxygen in our cells to release energy in the form of ATP (adenosine triphosphate). This energy is essential for various bodily functions like moving, breathing, and thinking.
So, the correct answer to the question is:
c. Energy
Food does not directly react to produce oxygen, water vapor, or fats as part of the energy release process in our bodies. While oxygen is needed in the process of energy release from food, it is not a product of the reaction itself. Water vapor is a result of respiration but not directly from food reactions. Fats are a type of nutrient found in food but are not the main product of food reacting to release energy.
