Video Creation: Macromolecules, Organic/Inorganic Molecules, Polymers/Monomers

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Macromolecules are large, complex molecules that form the basis of life. They are built from smaller units called monomers through a process called polymerization. When many monomers link together, they form polymers, which are the macromolecules we see in living organisms. Molecules are classified as organic or inorganic based on their composition. Organic molecules, like methane shown here, contain carbon atoms bonded to hydrogen and other elements. They form the basis of all living organisms. Inorganic molecules, such as sodium chloride or salt, typically do not contain carbon-hydrogen bonds and include minerals, salts, and metals. Polymers are formed when many small molecules called monomers link together through chemical bonds. This process is called polymerization. Different types of monomers can combine in various patterns to create diverse polymer structures. The properties of the resulting polymer depend on the types of monomers used and how they are arranged in the chain. Biological macromolecules fall into four main categories. Carbohydrates like glucose provide energy and structural support. Their monomers are simple sugars. Proteins are made from amino acid monomers and perform countless functions including catalysis and structure. Lipids form cell membranes and store energy. Nucleic acids like DNA and RNA store and transmit genetic information using nucleotide monomers.