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Question

If the chyme of a person who had orally consumed only starch as food is analyzed before it enters the duodenum,it will show the presence of

A
Dextrin and maltose
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B
Maltose and glucose
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C
Starch, dextrin and maltose
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D
Starch, dextrin and glucose
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Solution

The correct option is C Starch, dextrin and maltose
Carbohydrates are the first biomolecules to be digested. The starch in food is acted upon by salivary amylase called as ptyalin. Ptyalin splits dietary starch into limit dextrin and maltose. All the starch in diet is not acted upon by salivary amylase and remaining is digested in intestine. The amylase is inactivated in stomach due to low pH. Hence, the chyme of person who has consumed only starch will show dextrin, maltose and starch.

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