Solved UPSC CDS/OTA Question
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Q · Digestive Systemmedium · 45s
Which substance neutralizes the acidic chyme entering the duodenum?
TopicDigestive System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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Pancreatic duct cells secrete bicarbonate, raising pH from acidic to around 7–8, protecting duodenal mucosa and creating optimal conditions for pancreatic enzyme activity.
Final Answer: Option C - Pancreatic bicarbonate