Rough Endoplasmic Reticulum (RER) endoplasmic reticulum Structure composed of a lipid membrane with membrane bound ribosomes lipid membrane is continuous with nuclear membrane Function synthesis of secretory proteins e.g. peptide hormones addition of N-linked oligosaccharides to peptides Cell biology RER is found in high concentration in neurons login to view 4 more bullets pancreatic acinar cells login to view 1 more bullet Smooth Endoplasmic Reticulum (SER) Structure lipid membrane without membrane bound ribosomes Function steroid synthesis detox of chemicals makes compounds water soluble two mechanisms login to view 4 more bullets lipid metabolism release of fatty acids from triglycerides assembles lipoproteins for release carbohydrate metabolism gluconeogenesis login to view 8 more bullets Cell biology found in high concentrations in hepatocytes kidney adrenal cortex corpus luteum muscle login to view 2 more bullets