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As soon as the partially digested food enters the duodenum . the walls of the duodenum gets excited and releases H CO3 or bi carbonate ions . this makes the medium alkaline .......

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The duodenum becomes alkaline due to the release of bicarbonate ions from the pancreas in response to the acidic chyme entering from the stomach. This neutralizes the acidity of the chyme, creating a more favorable pH environment for the enzymes to function in the small intestine.

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Q: How does medium becomes alkaline in deoudenum?
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