title: A partial sequence of ionic changes associated with the acrosome reaction of Strongylocentrotus purpuratus.
mesh_terms: D000177:Acrosome / Q000502:physiology*; D000818:Animals; D001693:Biological Transport, Active; D002118:Calcium / Q000378:metabolism; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D008297:Male; D011188:Potassium / Q000378:metabolism; D012617:Sea Urchins; D012623:Seawater; D012964:Sodium / Q000378:metabolism; D013094:Spermatozoa / Q000502:physiology*
chemical_list: D012964:Sodium; D011188:Potassium; D002118:Calcium