Cell membrane is the outermost layer of the animal cell. In plants cell membrane is under the cell wall. Structure of the cell membrane can be defined by the fluid mosaic model.
According to this model cell membrane is a double layer of protein and phospholipids.
Phospholipids molecule is present in the form of two layer and protein molecules are embedded in the lipid bi layer. So the appearance is like a sea of lipids and protein molecules are floating into the lipid sea.
Phospholipids have one polar end and other non polar end. Non polar ends face each other in the middle of the lipid layer.
Cell membrane is selectively permeable membrane that it only allows the selective particles to enter in it.
Cholesterol is present in the cell membrane or in animal cell membrane. Protein that embedded is called as intrinsic protein. This protein helps to move ions into the membrane. When carbohydrates unit with protein it form the glycoprotein. When carbohydrate unit with lipids it is called glycolipids. Both make a glycocalyx. The glycocalyx is necessary for cell to cell recognition.
According to this model cell membrane is a double layer of protein and phospholipids.
Phospholipids molecule is present in the form of two layer and protein molecules are embedded in the lipid bi layer. So the appearance is like a sea of lipids and protein molecules are floating into the lipid sea.
Phospholipids have one polar end and other non polar end. Non polar ends face each other in the middle of the lipid layer.
Cell membrane is selectively permeable membrane that it only allows the selective particles to enter in it.
Cholesterol is present in the cell membrane or in animal cell membrane. Protein that embedded is called as intrinsic protein. This protein helps to move ions into the membrane. When carbohydrates unit with protein it form the glycoprotein. When carbohydrate unit with lipids it is called glycolipids. Both make a glycocalyx. The glycocalyx is necessary for cell to cell recognition.
