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 series of folded vesicles that provide a surface for many cellular activities, including the metabolism of carbohydrates and protein production in ribosomes. There are two types of endoplasmic reticulum, the smooth endoplasmic reticulum and the rough endoplasmic reticulum. The smooth endoplasmic reticulum is used in the storage and production of steroids and lipids; the rough, in the production and transport of proteins. To unlock this lesson you must be a Study.com Member.