Question

Carrier ions like sodium ions facilitate the absorption of substances like:

• (A) Amino acids and glucose
• (B) Glucose and fatty acids
• (C) Fatty acids and glycerol
• (D) Fructose and some amino acids

Answer 1

The Correct Option is A

Explanation:
Carrier ions like sodium ions facilitate the absorption of substances like amino acids and glucose.Glucose and amino acids are co-transported along with sodium ions in the intestinal epithelium. The Na/Glucose co-transporter (SGLT $1$) facilitates glucose-coupled sodium absorption while amino acid-coupled sodium absorption occurs through the epithelial cells with the help of sodium/amino acid co-transporters. There are specific co-transporters for different classes of amino acids.Hence, the correct option is (A).