title: A theory of piezoelectric activity and ion-movements in the relation of flagellar structures and their movements to the phototaxis of Euglena.
mesh_terms: D000255:Adenosine Triphosphate / Q000378:metabolism; D001692:Biological Transport; D002118:Calcium / Q000502:physiology; D002465:Cell Movement; D004579:Electron Transport; D004594:Electrophysiology; D005055:Euglena / Q000502:physiology*; D005407:Flagella / Q000502:physiology*; D008027:Light; D008274:Magnesium / Q000502:physiology; D008870:Microtubules; D008928:Mitochondria; D010084:Oxidation-Reduction; D010786:Photoreceptor Cells / Q000502:physiology; D010860:Pigments, Biological; D011188:Potassium / Q000502:physiology
chemical_list: D010860:Pigments, Biological; D000255:Adenosine Triphosphate; D008274:Magnesium; D011188:Potassium; D002118:Calcium