Final answer:
In both plants and humans, energy storage molecules undergo a process of storing and releasing energy.
Step-by-step explanation:
In both plants and humans which are present in the environment, the energy storage molecules undergo a process where energy is stored and released. In plants, photosynthesis captures energy from sunlight and converts it into chemical energy in the form of glucose. This energy is stored in the covalent bonds of sugar molecules.
In addition, when these bonds break, then the stored energy is naturally released. Similarly, in the human body, potential energy is stored in chemical bonds between atoms and molecules. When these bonds are formed or broken, chemical energy is invested or released, respectively.