title: Uptake of ferritin from the medium by Tokophrya infusionum.
abstract: Tokophrya infusionum, a suctorian, is deprived of a mouth opening. The uptake of ferritin from the medium is accomplished through pits, invaginations of the plasma membrane which are permanent structures. From the pits containing ferritin, flat vesicles are pinched off transporting the ferritin to the cytoplasm.
mesh_terms: D016798:Ciliophora / Q000378:metabolism* / Q000648:ultrastructure; D005293:Ferritins / Q000378:metabolism*
chemical_list: D005293:Ferritins