Digestion is the breaking down of larger organic molecules obtained from the diet, such as carbohydrates, fats and proteins, into smaller ones, such as glucose, fatty acids, glycerol and amino acids.
It acts on cane sugar and converts them into simple sugar or glucose. This enzyme splits lactose into glucose and galactose. This galactose is again converted into glucose in the liver at time of necessity. It converts maltase into dextrin.
This enzyme activates the proteolytic enzyme of pancreatic juice. It activates trypsinogen to trypsin which helps in the digestion of protein foods.
The enzyme completes the digestion of protein foods. It converts peptone polypetide and other undigested protein foods into amino acids. In this part of small Intestine the digestion of all the three types of foods are completed.
Carbohydrate foods are simplified into glucose, protein into amino acids and fat into fatty acids and glycerol. When the process of digestion is completed, they are carried to the last part of the small intestine i. The digested food reaches this place in about four hours.
Ileum constitutes the last three fifth of small intestine. It is relatively thinner than jejunum. From this place the absorption of simplified and digested food starts. By the action of various digestive juices, saliva, gastric, juice, pancreatic juice and intestinal juice, different food materials are simplified and ready for absorption.
Proteins have been broken down to peptone by gastric juice, polypeptide by pancreatic juice and finally to Amino acids by intestinal juice. Carbohydrates have been converted into maltose by salivary juice, other disaccharides by pancreatic juice and lastly mono-saccharides of glucose or simple sugar by Intestinal juice.
Fat is simplified into fatly acids and glycerol by the action of gastric lipase and pancreatic lipase. Absorption of Digested Food: Absorption of digested food take place in the epithelial surface of the villi in the Ilium part of small intestine. The mucous membrane of the small intestine is line by a number of projections like substances known as villi.In general, in molluscs, arthropods, earthworms, birds and vertebrates, which organs are involved in this type of digestion?
Mechanical digestion is the fragmentation of food aided by specialized physical structures, such as teeth, prior to extracellular digestion. What is the adnexal organ of the digestive system in which bile is stored. The digestive system is made up of the digestive tract, which includes the esophagus, stomach and intestines and other organs that aid in digestion such as the liver, pancreas and gall bladder.
The breaking down of food for digestion begins in your mouth. DIGESTIVE SYSTEM Essay DIGESTIVE SYSTEM. Week Five Quiz Chapter 24 Digestive System 1. Which of the following is a function performed by the digestive system? a. cellular respiration b. food selection c. elimination of undigested food d.
regulation of blood pH e. integration and coordination of other systems 2. Lipid-soluble drugs placed under the tongue a. are more easily swallowed.
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Choose from different sets of anatomy test digestive system questions essay flashcards on Quizlet. Essay about The Chemistry of the Human Digestive System - Over the course of time there have been many pondering questions and theories about everyday life.
Learn anatomy test digestive system questions essay with free interactive flashcards. Choose from different sets of anatomy test digestive system questions essay flashcards on Quizlet. Digestive system essay questions and answers. November 26, By. No comments yet. Digestive system essay questions and answers. 5 stars based on 41 reviews leslutinsduphoenix.com Essay. Types of hooks for essays short essay on a school field trip. Being black essay. - Comparing the efficiency of digestive system. A digestive system is the food is passed through the body separating the good part for usage and the indigestible part for waste. There are three types of digestive system, monogastric (carnivore and omnivores), hind gut fermenter and a ruminant. Monogastric includes animals such as pigs, dog.