Fats, also called lipids, are composed of the elements carbon, hydrogen and oxygen. Three fatty acid chains attach to one glycerol unit to form a triglyceride, the most common form of dietary fat. More »

Milk does not have a specific chemical or molecular formula; it is a variable mixture of water, fats, proteins and carbohydrates. Because the components of milk vary depending on fat and protein content, there is no sing... More »

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Milk is a complex solution composed of water, solids, fat, proteins, lactose and minerals. Many of these components are compounds on their own, giving milk its very complicated chemical makeup. More »

Although the chemical composition of wood varies from species to species, wood is primarily composed of carbon, hydrogen, oxygen, calcium, potassium, sulfur, nitrogen and magnesium. Most wood contains some amount of wate... More »

Inorganic compounds form ionic bonds, have high melting points and are made from either single elements or compounds that do not include carbon and hydrogen. In solutions, they break down into ions that conduct electrici... More »

The base elements contained in protein cells are: carbon, hydrogen, nitrogen and oxygen. Proteins are comprised of up to thousands of different units called amino acids. These amino acids link in a chain-like structure w... More »

Organic compounds contain carbon, and almost all organic compounds contain hydrogen, with many also comprised of additional atoms of nitrogen, oxygen or sulfur. Not all compounds that contain carbon, however, can be cons... More »