NEET BIOLOGY

Detailed explanation-1: -The rough endoplasmic reticulum (RER) is so named for the appearance of its outer surface, which is studded with protein-synthesizing particles known as ribosomes.

Detailed explanation-2: -The nucleolus is a spherical structure found in the cell’s nucleus whose primary function is to produce and assemble the cell’s ribosomes. The nucleolus is also where ribosomal RNA genes are transcribed.

Detailed explanation-3: -Palade realized that the dots on the surface of the rough ER were ribosomes synthesizing secretory proteins. This was not only the first function assigned to the ER but also a revolutionary idea: Secretory proteins would cross an intracellular membrane, rather than the plasma membrane.

Detailed explanation-4: -The rough endoplasmic reticulum is so-called because its surface is studded with ribosomes, the molecules in charge of protein production.