Estradiol is a type of estrogen which is normally secreted by the ovaries. It can be prescribed for many uses, including the relief of menopausal symptoms or for the prevention of osteoporosis and hormone replacement in women who are deficient in estrogen.
Each class of molecule has features that determine its use in living systems. The first class of molecules are called carbohydrates. The simplest type of these, monosaccharide simple sugars, have a basic formula: for every carbon atom, there are two hydrogens and one oxygen, or one water for each carbon. Carbo - hydrate.
Plants synthesize two types of polysaccharides, starch and cellulose. The glycosidic bonds between glucose units in plant starch are similar to those in animal glycogen. Accordingly, starch molecules are structurally similar, forming compact coils, and play a similar role in energy storage for plants.lants synthesize two types of polysaccharides, starch and cellulose. The glycosidic bonds between glucose units in plant starch are similar to those in animal glycogen. Accordingly, starch molecules are structurally similar, forming compact coils, and play a similar role in energy storage for plants.