GENERAL HISTOLOGY

Detailed explanation-1: -Lipids present in the cell membrane are synthesized by the Golgi apparatus and smooth endoplasmic reticulum. Thus, plasma membrane lipids and proteins are synthesized by the endoplasmic reticulum both smooth and rough and Golgi apparatus by the process known as membrane biosynthesis.

Detailed explanation-2: -The organelle called ‘endoplasmic reticulum’ occurs in both plants and animals and is a very important manufacturing site for lipids (fats) and many proteins. Many of these products are made for and exported to other organelles.

Detailed explanation-3: -The Golgi apparatus receives proteins and lipids (fats) from the rough endoplasmic reticulum. It modifies some of them and sorts, concentrates and packs them into sealed droplets called vesicles.

Detailed explanation-4: -Proteins, most lipids, and a few carbohydrates of cell membranes are synthesized in the endoplasmic reticulum. Many lipids species and most carbohydrates of membranes are synthesized in the Golgi apparatus.

Detailed explanation-5: -In the final stage of transport through the Golgi apparatus, modified proteins and lipids are sorted in the trans Golgi network and are packaged into vesicles at the trans face.