BIO 101 Lecture Notes - Lecture 3: Dehydration Reaction, Maltose, Corn Syrup
25 Jan 2017
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Document Summary
Organic molecules are molecules found in living systems. Organic molecules always contain carbon: often, many carbon atoms are connected in a skeleton or backbone. Many are quite complex in structure (chains, sheets, rings, helices) Simpler than organic molecules: examples: water, salt, mineral and rock. Are all molecules produced by living things: mostly organic and some inorganic, biologically important for acquiring nutrients, movement, growth and reproduction, carbon chemistry allows for this: needs 4 covalent bonds to fill its outer electron shell. Are commonly occurring atoms or groups of atoms that are attached to the carbon backbone of organic molecules. They are less stable than carbon backbone. By analogy, trains (polymer) are a chain of individual train cars (monomer) Monomers are joined: one monomer loses a hydrogen ion (h+, second looses a hydroxide ion or hydroxyl group (oh-, monomers link covalently at open electron sites and water is formed. Polymer broken apart into its original subunits.
