Triglycerides

What are the structural differences between phospholipids and triglycerides?

This is a Cell and Molecular biology class. I need as much detail as possible please. Thank you.

Public Comments

1. Trigylcerides are composed of two types of molecules: glycerol and 3 fatty acids. Phospholipids are similar to triglycerides in that they contain glycerol and fatty acids, too. But, the big difference is that phospholipids are made up of 1 glycerol molecule and only 2 fatty acid molecules (not 3!) This is a big difference because in place of the third fatty acid, phospholipids have a polar group attached to the glycerol molecule. Remember, triglycerides were entirely hydrophobic because all three positions on the glycerol molecule were taken up by nonpolar fatty acids. But, phospholipids have a polar group in one place on the glycerol molecule, making phospholipids partly hydrophilic; the polar group helps to form the polar head. The two fatty acids, maintain a hydrophobic portion of the phospholipid, the tails.
2. triglycerides contains a glycerol attached with 3 lipids molecules but in case of pospolipids glycerol is attached to 2 lipid molecule and one phosphate[po3] molecule. the lipid content may vary in both of thm but the lipids they contain in thm gives the inividual lipids their characteristics.......hop u ot ur answer