PPT-Chapter 34- ANIMAL NUTRITION AND DIGESTIVE SYSTEM

General Biology II BSC 2011 Insert photo here representing chapter credit modification of work by Julie Rybarczyk Types of Digestive Systems Heterotrophs are divided into three groups based on their food sources. A. Bacterial Diseases of the Upper Digestive Tract (Mouth & Stomach). 1. Tooth Decay (dental caries). A) This is an endogenous infection . 1) Most common infectious disease of humans . 2) Young are more susceptible than old. . and Muscular. Systems . By Blandy , Esmeralda , Misty , Alexis , Idaly. Digestive system. The digestive tract (also known as the alimentary canal) is the system of organs within multicellular animals that takes in food, digests it to extract energy and nutrients, and expels the remaining waste.. Lesson5– . Digestive System Model. Objectives. :. Students will gain a full understanding of how the digestive and excretory system work in their own . bodies.. Students will be able to name the parts of the digestive system.. By Mr. Style. Parts of the Digestive System. The Mouth:. The . mouth is the beginning of the digestive system, and, in fact, digestion starts here before you even take the first bite of a meal. The smell of food triggers the salivary glands in your mouth to secrete saliva, causing your mouth to water. When you actually taste . The . digestive system . is involved in the ingestion and digestion of food and elimination of indigestible material.. Digestion takes place within the . digestive tract. , which begins with the mouth and ends with the anus.. What do you already know?. Complete the Digestive System Handout to the best of your ability without looking in any text or your notes.. You may work in groups.. Do not complete the bottom overview.. Learning Objectives. Define Key Terms relating to the digestive system. Describe the four functions of the digestive system. Identify at least 10 digestive system structures and the function of each. Liang. , Kimberly Maldonado , and . Julian Smith. Parts of the body that supports the Digestion . system . Mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas, gall bladder, colon, anus, salivary glands, chemical digestion, mechanical digestion. Nutritional Requirements. The flow of energy into and out of an animal can be viewed as a “budget”. - most of the energy taken in is used to produce ATP to power resting metabolism and temperature regulation. Bell Work. Please answer these “pre-test” questions:. 1) Which has a longer length – the large intestine or the small intestine?. 2) True or False: Digestion begins as soon as it enters the mouth. continual supply . of water, electrolytes, and . nutrients.To. achieve . this requires . (. 1) movement of food through. the alimentary tract; (2) secretion of digestive juices. and digestion of the food; (3) absorption of water,. to convert food into nutrients your body needs, and to rid the body of waste. . To do its job, the system requires the cooperation of a number of different organs throughout the body, including the mouth, stomach, intestines, liver and  gallbladder. Ingestion: . The in take of food into the digestive tract through the mouth. Mechanical Processing: . The physical manipulation of solid foods into materials that are easier to propel through the digestive tract. Also increases the solid foods surface area which makes them more susceptible to enzyme activity and easier to absorb. . Dr. Rahul B Patil. SYBSc. Paper II, Unit . I. Department of Zoology,. Veer Wajekar ASC College, Phunde. Autotrophic. Photoautotrophic: e.g. Euglena, . Volvox. , Bacteria. Chemoautotrophic: e.g. Bacteria, few sp. of .