Water is not an organic molecule because it does not contain any carbon. Organic molecules must have both hydrogen and carbon in them; however, a water molecule only contains hydrogen and oxygen.Continue Reading
Although the water molecule is not organic, it is essential for life. Water lubricates the joints, helps maintain normal body temperature, assists with the excretion of wastes and protects the spinal cord.
Four types of organic molecules are found in all living things: proteins, lipids, carbohydrates and nucleic acids. These molecules are classified as organic molecules because they all contain hydrogen and carbon. In humans, nucleic acids carry genetic information. Humans use proteins to manufacture hormones, speed up chemical reactions and transport hemoglobin. Lipids and carbohydrates are both used as sources of energy.Learn more about Nutritional Content