In this article we will discuss about the Digestion and Absorption of Fats from Gastrointestinal Tract. Digestion of Fats: Stomach: Lipase present in the stomach is unable to hydrolyze fats owing to the high acidity of the gastric contents. Therefore, the major part of the ingested fat is digested in the small intestine. Small Intestine: The ingested fat reaching the [...]
In this article we will discuss about the Digestion and Absorption of Nucleoproteins and Nucleic Acids from Gastrointestinal Tract. Digestion of Nucleoproteins and Nucleic Acids: Stomach: The nucleoproteins of many foods are cleaved by the acidity of the gastric juice into proteins (histones, protamine's etc.) and nucleic acids: The proteins are hydrolyzed by proteases present in the digestive juices to [...]
In this article we will discuss about the Digestion and Absorption of Carbohydrate from Gastrointestinal Tract. The carbohydrate diet mainly consists of polysaccharides (starch and glycogen) and disaccharides (sucrose and milk lactose). It also contains indigestible cellulose, hemicelluloses and pentosans etc. Digestion of Carbohydrate: Mouth: Salivary amylase (ptyalin) starts the digestion of cooked starch in the mouth. But very little [...]