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 composed of sac-like structures called cisternae that are folded and bound together by a cytoskeleton. There are two types of endoplasmic reticulum: smooth endoplasmic reticulum and rough endoplasmic reticulum.Smooth endoplasmic reticulum gets its name from its smooth folded surface.he endoplasmic reticulum is composed of sac-like structures called cisternae that are folded and bound together by a cytoskeleton. There are two types of endoplasmic reticulum: smooth endoplasmic reticulum and rough endoplasmic reticulum.