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.
Endoplasmic Reticulum (ER) is distributed throughout the cytoplasm and also exists in continuity with the cell membrane and nuclear membrane. There are two types of ER: (i) Rough endoplasmic reticulum (RER) (ii) Smooth endoplasmic reticulum (SER) (i) RER: The cytosolic membrane surface of ER is studded or coated with 80S ribosomes.