Question

You consume chemical energy in food every day. Where does that energy go?

a. You use it, and it is just gone.

b. Most of it is expended doing work on your surroundings.

c. Thermal energy resulting from bodily processes utilizing the energy leaves your body, heating your surroundings.

d. It is used by your body, and the unusable resulting energy is excreted when you go to the bathroom.

Answer 1

Human body functions on cellular respiration. During this process, the chemical energy present in food is partially transferred to ATP molecules. These ATP molecules are used as energy store-houses inside the cells, to convert glucose to carbon di oxide and water. The energy released during this reaction is in the form of thermal energy.

This thermal energy leaves your body and heats your surrounding. Thus the chemical energy in food is finally converted to thermal energy.

Option C is correct.