the rough surfaced endoplasmic reticulum disintegrated in two ways : ( 1 ) the endoplasmic reticulum in the cell periphery was vesiculated but ribosomes were well preserved at 15 min , and ( 2 ) large , round membranous structures appeared in apical cytoplasm at 3 h .
C0230779
rough surfaced endoplasmic reticulum
C0007634
the