試題詳解

47. Which of the following correctly describes the absorption of carbohydrates in the small intestine?
(A) Glucose and galactose enter enterocytes via sodium-glucose cotransporters (SGLT1).
(B) Fructose is absorbed via active transport, requiring ATP.
(C) Lactose is directly absorbed across the brush border without enzymatic breakdown.
(D) Sucrose absorption requires luminal amylase activity.
(E) Cellulose is digested by human enzymes into monosaccharides for absorption.