title: Energy transformation in biological systems: general discussion.
mesh_terms: D000244:Adenosine Diphosphate / Q000378:metabolism*; D000249:Adenosine Monophosphate / Q000378:metabolism*; D000251:Adenosine Triphosphatases / Q000378:metabolism*; D000255:Adenosine Triphosphate / Q000378:metabolism*; D000263:Adenylate Kinase / Q000378:metabolism*; D004734:Energy Metabolism; D009119:Muscle Contraction; D010770:Phosphotransferases / Q000378:metabolism*
chemical_list: D000249:Adenosine Monophosphate; D000244:Adenosine Diphosphate; D000255:Adenosine Triphosphate; D010770:Phosphotransferases; D000263:Adenylate Kinase; D000251:Adenosine Triphosphatases