The functions of Endoplasmic Reticulum are-

The Endoplasmic Reticulum (ER) is a membranous organelle found in eukaryotic cells. It has several functions, including:

Metabolism of carbohydrates: The ER is involved in the metabolism of carbohydrates, specifically the breakdown of glycogen into glucose.

Synthesis of proteins: The rough endoplasmic reticulum (RER) is studded with ribosomes and is involved in the synthesis, folding, and modification of proteins.

Synthesis of lipids: The smooth endoplasmic reticulum (SER) is involved in the synthesis of lipids, including phospholipids and steroids.

Synthesis of the nucleus is not the function of the Endoplasmic Reticulum.

Additionally, the ER also plays a role in calcium storage and release, detoxification of drugs and toxins, and the production and secretion of steroid hormones.