because ribosomes are attached to the surface
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it is studded with ribosomes, giving it a rough appearance. These ribosomes are responsible for protein synthesis, making the endoplasmic reticulum involved in protein production and transportation in the cell.
On the rough endoplasmic reticulum, it is rough due to the ribosomes that are on it. The Ribosomes create protein and send them into the endoplasmic reticulum. Ribosomes are made inside the nucleolus.
The rough endoplasmic reticulum (ER) has ribosomes attached to its surface, giving it a "rough" appearance, and is involved in protein synthesis. The smooth endoplasmic reticulum lacks ribosomes and is involved in lipid metabolism, detoxification, and calcium storage.
The endoplasmic reticulum has ribosomes attached to its surface, making it the rough endoplasmic reticulum (RER). These ribosomes are responsible for protein synthesis.
The rough endoplasmic reticulum is covered in ribosomes. In fact, it is called 'rough' because of the presence of ribosomes which give it a rough looking appearance. Technically, the rough endoplasmic reticulum is actually the region of the greater 'endoplasmic reticulum' where protein synthesis takes place. Another region of the endoplasmic reticulum is the 'smooth endoplasmic reticulum' where lipids are synthesized and other metabolic functions take place. The quantity of rough versus smooth endoplasmic reticulum is somewhat in flux and varies based on the needs of the cell.
Rough endoplasmic reticulum