quantitative electron microscopic autoradiography indicated that 3h-leucine is initially taken up by elements of the rough endoplasmic reticulum ( rer ) and cytoplasm ( 5 min postpulse ) , subsequently transported to and concentrated within components of the golgi apparatus ( 10 min of chase ) , and ultimately incorporated into all domains of the plasma membrane of secretory cells by 1-2 hr of chase .
C0010834
cytoplasm
C0007603
plasma membrane