title: Why do cells need phosphocreatine and a phosphocreatine shuttle.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism*; D000818:Animals; D004734:Energy Metabolism; D006868:Hydrolysis; D009132:Muscles / Q000378:metabolism*; D009206:Myocardium / Q000378:metabolism*; D009417:Nerve Tissue / Q000378:metabolism*; D010101:Oxygen Consumption; D010725:Phosphocreatine / Q000378:metabolism*
chemical_list: D010725:Phosphocreatine; D000255:Adenosine Triphosphate