title: 31P-NMR study of the activation of the sea urchin egg.
mesh_terms: D000643:Ammonium Chloride / Q000494:pharmacology; D000818:Animals; D005260:Female; D005306:Fertilization; D006863:Hydrogen-Ion Concentration; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D010063:Ovum / Q000502:physiology; D010710:Phosphates / Q000378:metabolism*; D012617:Sea Urchins / Q000502:physiology*; D013094:Spermatozoa / Q000502:physiology
chemical_list: D010710:Phosphates; D000643:Ammonium Chloride