Energy Flow of Energy Energy is defined as the ability to do work. When work is done it degrades ATP into ADP and inorganic phosphate. 2 O and convert it into fuel molecules using radiant energy. In the first law of energy, energy can be changed from one form into another but it cannot be created or destroyed. There are 4 basic types of energy that can be converted.
Chemical energy refers to energy associated with bonds within a molecule.
Electrical energy refers to energy associated with the flow of electrons. Mechanical energy refers to energy associated with moving objects whether they are machines of parts of cells. Radiant energy refers to energy associated with flow of photons. Or as your text puts it if there is no energy entering or leaving the system, the potential energy of the final state will always be less than the potential energy of the initial state. Things tend toward disorder spontaneously.