turnover of rna was also studied in various subcellular fractions : nuclei , mitochondria , rough endoplasmic reticulum , smooth endoplasmic reticulum , polysomes , ribosomes and srna , in normal , adrenalectomized , and adrenalectomized plus adrenocortical hormone treated rat kidney , by following the loss of radioactivity after a single injection of [ 14-c ] -orotic acid .
C0230779
rough endoplasmic reticulum
C0035553
ribosomes