AP BIOLOGY

Detailed explanation-1: -Answer and Explanation: Whenever energy is transferred from one form to another, some of that energy is lost as heat. For example, the oxidative breakdown of glucose will produce adenosine triphosphate, carbon dioxide, water, and metabolic heat.

Detailed explanation-2: -Every conversion that it undergoes has some associated “loss” of energy. Although this energy doesn’t actually disappear, some amount of the initial energy turns into forms that are not usable or we do not want to use. Some examples of these losses include: Heat energy, potentially as a result of air drag or friction.

Detailed explanation-3: -Scientists know that energy always changes from high to low quality when work is performed. During the change, some energy is lost in the form of heat, which cannot do work. The amount of energy lost as heat is often as high as 90 percent of the total energy involved.

Detailed explanation-4: -Thermodynamically, heat energy is defined as the energy transferred from one system to another that is not doing work. For example, when an airplane flies through the air, some of the energy of the flying plane is lost as heat energy due to friction with the surrounding air.