Definition of dissatisfaction noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.
SUMMARY. 1  Endoplasmic reticulum is an organelle found in both eukaryotic animal and plant cells. 2  The rough ER, studded with millions of membrane bound ribosomes, is involved with the production, folding, quality control and despatch of some proteins.
The endoplasmic reticulum is a delicate membrane structure that is contiguous to the nuclear membrane and which is present in the cytoplasm. It forms an extensive net of channels throughout the cell and is classified into rough or smooth types.