This type of phospholipid is found to be one of the components of the bile and helps in the fat digestion. In addition, it is also found to be important for the proper functioning of the liver, as well as in the absorption of lipids. As such, the type of phospholipid is found to be structurally important to help maintain the shape of the cell membrane. In this form, choline will be bound to the phosphate group of the molecule. This is the most abundant type of phospholipid found in cell membranes. As such, the different types of phospholipids are as follows: Phosphatidylcholine As such, the phosphate group of the phospholipid can be altered by simple organic molecules. Thus, they can be grouped into different types based on the type of molecule that is attached to the phosphate group. They would differ in size, shape, and chemical structure. It’s to be noted that not all phospholipids will be the same. One could see the same kind of phospholipid bilayer organization in the membrane-bound organelles like nucleus and mitochondria. Thus, the phospholipid bilayer is formed. Also, one more layer of these phospholipids would line up with the heads pointing to the inner side of the cell and the tails the other side. As such, the phospholipids would line up themselves next to one another with the heads on the outer side and the tails on the inner side. Thus, the different components of phospholipids would align themselves in the pattern due to these properties, thereby, making the structure of the cell membrane. As one might be aware, being hydrophilic means that the molecule is water-loving, whereas, being hydrophobic means that the molecule is water-hating in nature. The phospholipids are able to make the cell membrane in the cell due to its hydrophilic and hydrophobic properties of its components (mentioned above). As such, the head and tail parts of the phospholipid structure will be joined together by the glycerol molecule. In this, the two fatty acids would represent the “hydrophobic tails”, while the phosphate group representing the “hydrophilic head”. When structurally seen, a phospholipid is found to be consisting of two fatty acids along with a phosphate group. As the name suggests, these are the class of “lipids”, which are known to give structure, as well as protection to the cells. In the cell membrane, these phospholipids will be organized into a “bilayer”, thereby, acting as the framework of the cell in which the other components of the cell membrane will be embedded. In simple terms, the phospholipid can be called as one of the primary components of the cell membrane.
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