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2. Explain the difference between a dehydration synthesis reaction and a hydrolysis reaction. 3. Match each of the following levels of structural organization of proteins with its correct description. a. primary 1. compact, globular structure b. secondary 2. sequence of amino acids C. tertiary 3. alpha helix or beta-pleated d. quaternary 4. interaction of two or more polypeptide chains 4. Each enzyme has a pocket on its surface called a(an) to which a substrate binds