How the lactose sugar in milk broke down an enzyme?

Lactose, the sugar found in milk, is broken down by the enzyme lactase. Lactase catalyzes the hydrolysis of lactose into its two monosaccharide components, glucose and galactose, which can then be absorbed by the body. In individuals with lactose intolerance, there is a deficiency of lactase, leading to the inability to efficiently break down lactose, resulting in digestive discomfort. Thus, the breakdown of lactose by lactase is crucial for proper digestion of dairy products.