it affects the packaging and fluidity of the membrane.
1). Sphingolipids are sphingosine-based phospholipids.
2). Phosphoglycerides are glycerol-based phospholipids they are also known as glycerophospholipids. It is the main phospholipid in animals. The most common lipids in the cellular membranes are glycerolipids.
A phosphoglyceride is classified according to the nature of its head group.
In a normal healthy cell, phosphatidylserine is present inside of the plasma membrane whereas in the apoptotic cell is flipped on outside of the plasma membrane. Therefore it is an indication of apoptotic cells.
At neutral PH the PC and PE carry no net electric charge whereas PI and PS carry a single net negative charge.
2] Glycolipids- are a combination of carbohydrates and lipids. Are linked by a covalent bond that is a glycosidic bond in the presence of glycosyltransferase enzyme.
Are found on the outer surface of the plasma membrane.
Animal sterol is cholesterol.
Plant sterol is phytosterol.
Fungal sterol is Ergosterol.