in the sce assay , the insoluble or poorly soluble ba , zn , sr and ca chromates and the insoluble cr ( vi ) pigments zinc yellow ( containing zncro4 zn ( oh2 ] , chromium yellow and molybdenum orange ( both containing pbcro4 ) were directly clastogenic due to cellular endocytosis taking place in prolonged treatments , and nta significantly increased their chromosome-damaging activity .
C0007634
cellular
C0014139
endocytosis