Examples of enzyme-catalyzed reactions: 

• Inversion of cane sugar: The invertase enzyme breaks down cane sugar into glucose and fructose. 
• Conversion of glucose into ethyl alcohol: Glucose breaks down into carbon dioxide gas and ethanol in the presence of the enzyme zymase. 
• Conversion of milk to curd: The conversion of milk to curd is an enzyme-catalyzed reaction that is brought about by the lactobacilli enzyme present in curd. 
• Decomposition of urea into ammonia and carbon dioxide: The enzyme urease catalyzes this decomposition. 
• Conversion of starch into maltose and maltose into glucose:Starch get converted to maltose in the presence of enzyme diastase and maltose gets converted to glucose in the presence of enzyme maltase.