ANATOMY

Detailed explanation-1: -The ER can be classified in two functionally distinct forms: smooth endoplasmic reticulum (SER) and rough endoplasmic reticulum (RER). The morphological distinction between the two is the presence of protein-synthesizing particles, called ribosomes, attached to the outer surface of the RER.

Detailed explanation-2: -The outer surface of the endoplasmic reticulum can be smooth or rough. The rough endoplasmic reticulum has many ribosomes on its outer surface and makes proteins the cell needs. The smooth endoplasmic reticulum makes other substances that the cell needs, such as lipids (fats) and carbohydrates (sugars).

Detailed explanation-3: -The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.

Detailed explanation-4: -The rough endoplasmic reticulum (RER) has ribosomes on its surface. Ribosomes help in the synthesis of proteins. The smooth endoplasmic reticulum (SER) does not have ribosomes on its surface. The SER helps in the synthesis of lipids.

Detailed explanation-5: -The ER is a continuous membrane that extends like a net from the envelope of the nucleus outward to the cell membrane. Tiny RNA-and protein-laden particles called ribosomes sit on its surface in some places, translating genetic code from the nucleus into amino acid chains.