Question

what is glycolipid and it structure and function

Answer 1

Glycolipids are lipids with a carbohydrate attached by a glycosidic bond or covalently bonded. Their role is to maintain the stability of the cell membrane and to facilitate cellular recognition, which is crucial to the immune response and in the connections that allow cells to connect to one another to form tissues.

Answer 2

Glycolipids are structural lipids which are composed of carbohydrates and linked via gycosidic bonds (covalent bond).

Explanation:

Glycolipids are found on the extracellular face of eukaryotic cellular membrane. Glycolipids are synthesised with the help of lipids that allows sequential addition of sugar to the lipid.There are basically two types of glycolipids Glyceroglycolipids and Glycosphingolipids.

Structure of glycolipid:

glycolipids are composed of monosaccharide or oligosaccharide bounded with glycosidic bond to lipid. glycolipids have a glycerol backbone which is connected with fatty acid. Lipid bilayer in cell membrane has two lipid layers where inner and surface are polar heads and inner part of membrane consist of non-polar fatty acid tail.

Functions of glycolipid:

1. Cell–cell interactions: Glycolipid act as receptors at the surface of red blood cell.
2. Blood types: glycolipids helps to determine blood group of indivdual
3. Immune responses: some virus and pathogens carries glycolipids in their cell surface as well and hence it activates immune sytem of an individual.

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