If you want the blood stored, after the birth, the doctor clamps the umbilical cord in two places, about 10 inches apart, and cuts the cord, separating mother from baby. Then she inserts a needle and collects at least 40 milliliters of blood from the cord. The blood is sealed in a bag and sent to a lab or cord blood bank for testing and storage. The process only takes a few minutes and is painless for mother and baby. The cord blood bank may also send tubes so that the motherâs blood can be taken, too.
Phospholipids. Phospholipids differ only slightly from triglycerides in chemical structure. While each triglyceride molecule consists of glycerol and three fatty acids, each phospholipid molecule substitutes a phosphate for one of the three fatty acids.Phospholipids form the membrane that make up the outer layer of all human cells.hospholipids. Phospholipids differ only slightly from triglycerides in chemical structure. While each triglyceride molecule consists of glycerol and three fatty acids, each phospholipid molecule substitutes a phosphate for one of the three fatty acids.
As their name suggests, the triglycerides are composed of one molecule of glycerol and joined via ester bonds with three molecules of fatty acids. As is shown in Figure 12, fatty acids are long chains of carbon and hydrogen usually between 14-24 carbons long (and they always have an even number of carbons).. Phospholipids: This class of lipids are really derivatives of triglycerides. The are composed of a glycerol molecule with two fatty acids (a diglyceride). The third carbon contains a phosphate group and usually some added polar molecule (such as ethanolamine, serine or choline).