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CSS Zoology QUESTION #1335
Question 1
The monosaccharide which is readily absorbed through the intestine independent of Sodium ions is:
  • Fructose✔️
  • Glucose
  • Galactose
  • None of these
Correct Answer Explanation
Fructose is absorbed through the intestinal epithelium via facilitated diffusion using the GLUT5 transporter — a process that is independent of sodium ions. In contrast, glucose and galactose are absorbed via the sodium-dependent secondary active transport mechanism (SGLT1 cotransporter), which requires Na\(^+\) co-transport.