The energy of the compounds lies in the bonds present in the compound. Energy is released from the compounds when the bonds are broken.
Example: Adenosine triphosphte is hydrolyzed and adenosine diphosphate and inorganic phosphate is produced. This process releases energy by the breakdown of bonds which is used for carrying various metabolic processes of the body.
Hence, the chemical energy is stored in the bods of the compounds.
Kinases. Kinases add phosphate to molecules, and the modification can serve as a "switch" to turn events in the cell on or off. CDKs or cyclin dependent kinases regulate the cell cycle.
Solar UV radiation. Australia experiences some of the highest levels of UV radiation in the world because we are close to the equator and have many clear, blue-sky days. The Earth's orbit also brings countries in the southern hemisphere (Australia included) closer to the sun in the summertime than countries in the northern hemisphere during summer.
