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Organic Molecules Lab Introduction: Organic molecules are the chemicals that sustain biological processes in all living things These compounds are always made up of more than one type of element and must be synthesized by living organisms What makes an organic molecule different from an inorganic molecule is that organic
a) They all contain carbon, hydrogen and oxygen b) They are all soluble (i e dissolve) in non-polar solvents and relative insoluble in water Thus lipids are attracted to each other and not attracted to water (they are hydrophobic) The most important lipids in biological systems can be classified as triglycerides and related molecules such as
chemistry - refers not just to molecules from living things, but to all compounds containing the element carbon, regardless of origin Beginning early in the 19th century, as chemists learned through careful experimentation about the composition and properties of ‘organic’ compounds such as fatty acids, acetic acid and urea,
Organic molecules are the molecules that exist in all living things They are life’s building blocks All things are formed from these organic molecules There are four categories of organic molecules: Carbohydrates, lipids, proteins and nucleic acids 1 How are organic molecules related to all living things? 2
Organic molecules have carbon bonded to other atoms and determine structure and function of living things 2 Inorganic molecules do not contain carbon and hydrogen together; inorganic molecules such as salt ions can play important roles in living things B The Carbon Atom 1 Most common elements in living things are carbon, hydrogen, nitrogen
acids that are related to DNA The more we understand about how the chemistry of our body works the better our chance of keeping everything working, as it should Figure 1 1 All organic compounds contain carbon and most are formed by living things, although they are also formed by geological and artificial processes