realizes has specified input has specified output achieves_planned_objective role of adding a material entity into a target material to be added role adding material objective target of material addition role cultured cell population adding substance to cell culture Bjoern Peters renamed from 'administering substance to cell culture', to reflect that administration is commonly used only for organisms IEDB adding fetal calf serum to a 96 well plate containing a cell culture derived from a blood sample of a patient adding substance to cell culture is process in which a material substance is added to a cell culture pending final vetting