GENERAL HISTOLOGY

Detailed explanation-1: -The endoplasmic reticulum (ER) is a dynamic organelle responsible for many cellular functions, including the synthesis of proteins and lipids, and regulation of intracellular calcium levels.

Detailed explanation-2: -The endoplasmic reticulum (ER) is a large, dynamic structure that serves many roles in the cell including calcium storage, protein synthesis and lipid metabolism. The diverse functions of the ER are performed by distinct domains; consisting of tubules, sheets and the nuclear envelope.

Detailed explanation-3: -The ER has a central role in lipid and protein biosynthesis. Its membrane is the site of production of all the transmembrane proteins and lipids for most of the cell’s organelles, including the ER itself, the Golgi apparatus, lysosomes, endosomes, secretory vesicles, and the plasma membrane.

Detailed explanation-4: -The endoplasmic reticulum (ER) is the main site for lipid synthesis.

Detailed explanation-5: -Endoplasmic reticulum (ER)‐localized enzymes synthesize the vast majority of cellular lipids.