title: Gelatin embedding for enzyme ultracytochemistry; acid phosphatase activity in sea urchin eggs.
mesh_terms: D000135:Acid Phosphatase / Q000378:metabolism*; D000818:Animals; D003584:Cytological Techniques; D005260:Female; D005780:Gelatin; D008854:Microscopy, Electron / Q000379:methods; D010063:Ovum / Q000201:enzymology*; D012617:Sea Urchins
chemical_list: D005780:Gelatin; D000135:Acid Phosphatase