The true measure of an appraisalâwhether a gem, jewelry, or a watchâis a combination of sophisticated laboratory technology, and expertise in interpreting the test results.
ATP works by losing the endmost phosphate group when instructed to do so by an enzyme. This reaction releases a lot of energy, which the organism can then use to build proteins, contact muscles, etc. The reaction product is adenosine diphosphate (ADP), and the phosphate group either ends up as orthophosphate (HPO 4) or attached to another molecule (e.g. an alcohol).
- ATP is composed of an adenosine group attached to 3 phosphate groups. Energy is stored (chemical potential energy) in the bond between the 2nd & 3rd phosphate groups. - Breaking this bond releases energy & reforming this bond stores energy. - ATP is the only molecule that can directly transfer chemical energy into kinetic energy (i.e. muscle fibre contraction.