endoplasmic reticulumendoplasmic reticulum
The endoplasmic reticulum is defined as a series of folded membranes in the cells which are associated with protein synthesis, storage and the movement of cellular materials.
An example of the endoplasmic reticulum is the place that steroids are stored in the cells for later use.
a system of folded membranes, channels, and flattened sacs in the cytoplasm of eukaryotic cells, involved in the synthesis, storage, and transport of various substances necessary to cell function: as the point of attachment for ribosomes, it is especially associated with protein synthesis
A membrane network within the cytoplasm of cells involved in the synthesis, modification, and transport of cellular materials.