Lactase & the Mechanism of Lactose Intolerance

The video explains lactose, a disaccharide found in milk, and its metabolism in infants through the enzyme lactase. It discusses how lactase breaks down lactose into glucose and galactose, which are used for energy and biosynthesis. The video also covers lactose intolerance, a condition where lactase levels drop, leading to lactose accumulation in the intestines. This can cause symptoms like flatulence and diarrhea due to bacterial fermentation and osmotic imbalance.

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