GENERAL HISTOLOGY

Detailed explanation-1: -The lipid bilayer of many cell membranes is not composed exclusively of phospholipids, however; it often also contains cholesterol and glycolipids. Eucaryotic plasma membranes contain especially large amounts of cholesterol (Figure 10-10)-up to one molecule for every phospholipid molecule.

Detailed explanation-2: -This fluid lipid bilayer cross section is made up entirely of phosphatidylcholine. The three main structures phospholipids form in solution; the liposome (a closed bilayer), the micelle and the bilayer.

Detailed explanation-3: -It is easily seen by electron microscopy, Each cell in the human body is composed of a unit membrane which separates the cytoplasm from the extracellular environment. The most important components of this membrane are phospholipids, cholesterol, proteins and chains of olgiosaccharides (glycolipids and glycoproteins).