Which type of energy is primarily stored in food and released during metabolism?

• A. Kinetic energy
• B. Thermal energy
• C. Chemical energy
• D. Electrical energy

Answer: (C)

Verified step by step guidance

1. Understand that energy stored in food is related to the bonds between atoms in molecules, which is a form of potential energy.
2. Recall that chemical energy is the energy stored in the bonds of chemical compounds, such as carbohydrates, fats, and proteins found in food.
3. Recognize that during metabolism, these chemical bonds are broken and rearranged, releasing energy that the body can use for various functions.
4. Differentiate chemical energy from other types of energy: kinetic energy (energy of motion), thermal energy (heat), and electrical energy (energy from electric charges).
5. Conclude that the primary type of energy stored in food and released during metabolism is chemical energy.