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.
There are two main types of endoplasmic reticulum - the rough endoplasmic reticulum and the smooth endoplasmic reticulum and both have different jobs to do. Other general functions of the endoplasmic reticulum include drug metabolism, storage of glycogen, facilitating the transport of proteins and protein folding.