atp defined in 1951 yearatp - atp (adenosine triphosphate);
atp - A nucleotide coenzyme that takes part in many chemical reactions in all organisms. It provides a common source of energy for a range of different cellular activities. One of the phosphate groupings of ATP is readily transferred to other substances by enzyme action, simultaneously transferring a considerable amount of energy. This transfer of phosphate from ATP seems to be the main mechanism by which organisms make energy available for chemical synthesis, muscular contraction, osmotic work, etc. ATP is formed from adenosine diphosphate (ADP) by utilization of light energy in photosynthesis and by means of the energy derived from catabolic processes; the energy of both is thus made available for various kinds of work through ATP, See also: Phosphagen.
near atp in Knolik
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