Solved UPSC CDS/OTA Question
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Q · Digestive Systemmedium · 45s
The enzyme lactase acts on:
TopicDigestive System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Lactase, present on the brush border of small intestinal epithelial cells, hydrolyzes lactose into glucose and galactose. Lactase deficiency leads to lactose intolerance, causing gastrointestinal symptoms when dairy products are consumed.
Final Answer: Option C - Lactose