Final answer:
Glucose and galactose are absorbed in the intestinal villi by secondary active transport, while fructose is absorbed by facilitated diffusion. Sucrose needs to be broken down into monosaccharides before it can be absorbed.
Step-by-step explanation:
The monosaccharides glucose and galactose are transported into the epithelial cells of the small intestine by common protein carriers via secondary active transport, while fructose is absorbed and transported by facilitated diffusion alone. Sucrose, on the other hand, is a disaccharide that needs to be broken down into monosaccharides (glucose and fructose) before it can be absorbed.