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The Digestion and Absorption of Food: Instructor version of student Web Tutorial 43.1 that begins with a review of the parts and names of the human digestive system using a human torso diagram. It continues with a description of how carbohydrates, proteins, and lipids are digested. In the carbohydrate section, the actions of salivary amylase and pancreatic amylase, and the processes of peristalsis and absorption are discussed. The protein section shows how proteins are denatured and hydrolyzed by acid and proteases. The lipid section describes how pancreatic lipase breaks down fats after emulsification by bile salts. Run time: 10:10 |