what is atp and it's function
ADP and ATP are like batteries because they store energy in the chemical bonds they contain. ADP has only two phosphate groups (and fewer bonds), so it's like a par- tially charged battery. ATP has three phos- phate groups, so it is like a fully charged battery and has more bonds available for energy storage. 2.A.
Animals obtain their energy by oxidation of foods, plants do so by trapping the sunlight using chlorophyll. However, before the energy can be used, it is first transformed into a form which the organism can handle easily. This special carrier of energy is the molecule adenosine triphosphate, or ATP.