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Polymers CHO Amino Acids Protein Lipids Nucleic Acids 100 100 100 100 100 100 200 200 200 200 200 200 300 300 300 300 300 300 400 400 400 400 400 400 500 500 500 500 500 500 The repeating units of a polymer that serve as the individual building blocks. Monomers The individual units of a polymer are connected by this reaction. Dehydration or Condensation Reaction Polymers are disassembled by this reaction or the addition of water. Hydrolysis The polymer usually found to contain the element Nitrogen. Proteins During the dehydration reaction, this is given off. Water (H2O) The monomers of carbohydrates. monosaccharides C6H12O6 Glucose The simplest carbohydrates. sugars The type of bond that forms by dehydration in carbohydrates. Glycosidic linkage The three storage polysaccharides. Starch, Glycogen, & Cellulose The central carbon of an amino acid. carbon The side chain of an amino acid. R group These amino acids contain the element sulfur. cysteine & methionine Amino acids are joined together by dehydration reactions forming this bond. Peptide bond Which amino acid lacks an asymmetric carbon? glycine The unique sequence of amino acids in a protein. Primary Structure A slight change in this structure of a protein can lead to mutations like sickle-celled hemoglobin. Primary structure Helix or pleated sheet Secondary structure Formed when two cysteine amino acids are brought in close together by the folding of a protein. Disulfide bridge Clustering of hydrophobic R groups away from water. Hydrophobic interactions and van der Waals interactions The trait that is shared by all lipids. They have little or no affinity for water. A long carbon chain with a carboxyl group at one end. Fatty acid A fat is constructed of two kinds of smaller molecules: Glycerol and fatty acids A fat that has double bonds along its carbon chains. unsaturated The compound that has a phosphate and two fatty acid chains attached to the glycerol molecule. phospholipid The process by which DNA copies itself. replication Pyrimidines Cytosine, thymine, uracil purines Adenine & guanine In 1951, the structure of DNA was found to be this. Double helix The difference between deoxyribose and ribose An oxygen atom located on carbon 2 of deoxyribose.