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.
The two main categories of sugars are monosaccharides and disaccharides. Categories of sugars: Monosaccharides are simple (unit) sugars. Disaccharides consist of molecules whose form is that of two monosaccharide molecules joined together. Categories of larger carbohydrate molecules formed from sugars: Oligosaccharides consist of molecules formed from a few (i.e. more than 2, but not many) monosaccharide molecules joined together.