Question

Which of the following is NOT true of carbohydrate absorption? a. End products of carbohydrate digestion are transported through the portal vein to the liver. b. Disaccharides are digested to monosaccharides by enzymes attached to intestinal cells. c. Monosaccharides can enter the villi. d. Lactose is absorbed intact and transported through the portal vein to the liver.

Answer 1

Answer:

Option- D

• Lactose is absorbed intact and transported through the portal vein to the liver.                                                                                                                                                                                                                                                                                            

Explanation:

• Lactose are larger molecules which are categorized as the carbohydrates, and have the human system has the basic requirement of such materials in order to survive in a given time. They are not absorbed or passed through the portal vein to the liver.

Answer 2

Answer:

D. Lactose is absorbed intact and transported through the portal vein to the liver.

Explanation:

Lactose is a disaccharide. It is a sugar composed of galactose and glucose subunits and has the molecular formula C₁₂H₂₂O₁₁. Lactose as a disaccharide can never be absorbed just like that. It needs to be broken down into monosaccharides first.