NEET BIOLOGY

Detailed explanation-1: -Endoplasmic reticulum: Network of membranous sacs and tubes; active in membrane synthesis and other synthetic and metabolic processes; has rough(ribosome–studded) and smooth regions.

Detailed explanation-2: -The endoplasmic reticulum (ER) is a network of membrane-enclosed tubules and sacs (cisternae) that extends from the nuclear membrane throughout the cytoplasm (Figure 9.1). The entire endoplasmic reticulum is enclosed by a continuous membrane and is the largest organelle of most eukaryotic cells.

Detailed explanation-3: -The endoplasmic reticulum (ER) is a series of interconnected membranous sacs and tubules that collectively modifies proteins and synthesizes lipids.

Detailed explanation-4: -The smooth endoplasmic reticulum (smooth ER) is continuous with the rough ER but has few or no ribosomes on its cytoplasmic surface. Functions of the smooth ER include: Synthesis of carbohydrates, lipids, and steroid hormones. Detoxification of medications and poisons.