ADH is produced by the hypothalamus in the brain and stored in the posterior pituitary gland at the base of the brain. ADH is normally released by the pituitary in response to sensors that detect an increase in blood osmolality (number of dissolved particles in the blood) or decrease in blood volume.
Chemical energy is stored in coal. This energy is transferred as heat and stored in water as steam. The energy in steam is transferred to movement in a turbine and to electrical energy in the turbine.
When wood is burned, the chemical energy within the cells of the wood break and heat is released. In the engine of a car or truck, the energy in the gasoline is converted to heat and motion, to make the car move. Kinetic energy can also be converted to potential energy. During the process of photosynthesis carried out by plants, radiant energy, or the light from the sun, is converted into chemical energy, which is stored within the plant. When animals eat the plants, the reverse reaction takes place.