Food carbohydrates Starch Polysaccharides Salivary amylase G) Pancreatic amylase Lactose Maltose Lumen Lactase Maltase O Sucrase Saccharose Disaccharides Nat cotransport carrier Villus epithelial cell Galactose Glucose Glucose Glucose Glucose Fructose Galactose Na*- and energy- dependent absorption Glucose Facilitated diffusion #Fructose Monosaccharides Energy dependent Blood capillary Na+