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Question

Carrier ions like Na+facilitate the absorption of substances like

A
Fructose and some amino acids
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B
Amino acids and glucose
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C
Glucose and fatty acids
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D
Fatty acids and glycerol
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Solution

The correct option is B Amino acids and glucose
Glucose and amino acids are co-transported along with sodium ions in the intestinal epithelium. The Na/Glucose cotransporter (SGLT 1) facilitates glucose-coupled sodium absorption while amino acid-coupled sodium absorption occurs through the epithelial cells with the help of Na/amino acid cotransporters. There are specific cotransporters for different classes of amino acids.
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