NEET BIOLOGY

Detailed explanation-1: -The RER is termed “rough” due ribosomal attachments to the surface compared to the SER, which does not have ribosomes.

Detailed explanation-2: -The ribosome that is synthesizing the protein is directly attached to the ER membrane. These membrane-bound ribosomes coat the surface of the ER, creating regions termed rough endoplasmic reticulum, or rough ER (Figure 12-36A).

Detailed explanation-3: -Rough endoplasmic reticulum appears rough, if viewed under a microscope. It is so because of the presence of ribosomes on its surface. Ribosomes are yet another cell organelle that help in the synthesis of proteins.

Detailed explanation-4: -The most apparent difference between smooth and rough endoplasmic reticulum is the presence of ribosomes. Only the rough endoplasmic reticulum has ribosomes on its surface, and that gives it its characteristic rough appearance.