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.
2.3 Carbon-Based Molecules â¢ Lipids have several different functions. âbroken down as a source of energy âmake up cell membranes â used to make hormones. 2.3 Carbon-Based Molecules â¢ Fats and oils have different types of fatty acids. âsaturated fatty acids âunsaturated fatty acids. 2.3 Carbon-Based Molecules â¢ Phospholipids make up all cell membranes.