Why Rough Endoplasmic Reticulum Is Rough?

Robert Thorne
Robert Thorne
• • 6 min read

Rough Er Is Named for Its Rough Appearance, Which Is Due to the Ribosomes Attached to Its Outer (Cytoplasmic) Surface. .. . the Ribosomes on Rough Er...

Why Rough Endoplasmic Reticulum Is Rough?

Rough ER is named for its rough appearance, which is due to the ribosomes attached to its outer (cytoplasmic) surface. ... The ribosomes on rough ER specialize in the synthesis of proteins

synthesis of proteins
Protein biosynthesis (or protein synthesis) is a core biological process, occurring inside cells, balancing the loss of cellular proteins (via degradation or export) through the production of new proteins. ... This conversion is carried out by enzymes, known as RNA polymerases, in the nucleus of the cell.
› wiki › Protein_biosynthesis
that possess a signal sequence that directs them specifically to the ER for processing.

What makes rough endoplasmic reticulum rough and not smooth?

Rough Endoplasmic Reticulum or RER looks like an uneven surface because of the presence of the 80S ribosomes, when viewed in the electron microscope. It is also known as the Granular Endoplasmic Reticulum.

Must Read

What makes rough endoplasmic reticulum rough Class 9?

Rough endoplasmic reticulum has ribosomes embedded within its structure, giving a “rough” appearance. Smooth endoplasmic reticulum does not have these ribosomes, hence appear “smooth.”

Robert Thorne

Robert Thorne

Automotive & Future Transportation Editor
Twitter Linkedin

Robert Thorne covers electric vehicle innovations, autonomous driving systems, global mobility trends, and automotive engineering developments.