7/30/2023 0 Comments Er lumen location![]() Both rough ER and smooth ER have the same types of membranes but they have different shapes. You might look at a cell from the pancreas or liver for good examples of cells with large ER structures. Cells that synthesize and release a lot of proteins would need a large amount of ER. For example, some cells, such as prokaryotes or red blood cells, do not have an ER of any kind. The membranes are slightly different from cell to cell and a cell’s function determines the size and structure of the ER. Structurally, the endoplasmic reticulum is a network of membranes found throughout the cell and connected to the nucleus. It works closely with the Golgi apparatus, ribososmes, mRNA, and tRNA. While the function of the nucleus is to act as the cell brain, the ER functions as a manufacturing and packaging system. It also has a role in the synthesis of the cell membrane during cell division and the formation of the skeletal framework of the cell.Another organelle in the cell is the endoplasmic reticulum (ER). It is involved in the production, processing, and transport of proteins and lipids. What are the functions of the endoplasmic reticulum? The rough endoplasmic reticulum has abundant ribosomes and is responsible for the synthesis and processing of certain proteins in the eukaryotic cells. Which type of endoplasmic reticulum is involved in the synthesis of proteins? The RER has a rough surface due to abundant ribosomes present on its surface. The two types of endoplasmic reticulum are smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER). What are two types of endoplasmic reticulum? ![]() It has a role in the production, processing, and transport of proteins and lipids. It is a membrane-bound organelle found in eukaryotic cells.
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