Multiple choice Which of the following is NOT correctly matched? Oxidoreductases: Catalyze oxidation/reduction reactions Lyases: Catalyze the hydrolysis of various bonds Isomerases: Catalyze isomerization changes within a single molecule Ligases: Join two molecules with covalent bonds Reveal answer Fill a bubble to check yourself B Correct answer Explanation Lyases is a class of enzymes, which cleave various bonds by means other than hydrolysis and oxidation. Hydrolases is a class of enzymes, which catalyze the hydrolysis of various bonds.