PPT-Physical and Chemical Changes in the Digestive System

Reading to Learn Read the following passage and answer the questions that follow Terms to Know 1 Digestion is the process where food is broken down by the digestive system into small nutrients . 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. #1: What happens to a substance when a chemical change occurs?. #2: What are some signs of a chemical change?. Bell Ringer: Tuesday 10/1/13. Read the paragraph below and determine the main idea. Then, write and answer the questions. 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. The digestive system is used for breaking down food into nutrients . which then pass into the circulatory system and are taken to where they are needed in the body.. Introduction. There . are four stages to food digestion:. Navo. Middle School Science. Physical Change. A change in the size, shape, form, or state of matter that does not change the matter’s identity.. Examples:. Play-doh. being sculpted. Ice Cream melting. The Digestive System. Amazing Facts . . We make 1-3 pints of saliva a day.. The average male will eat about 50 tons of food to sustain weight of 150 pounds. A horse’s intestines are about 89 feet long. EQ: How are changes in matter related to changes . in energy?. Changes in Matter. You are at the beach. You built a sandcastle!. You notice storm clouds gathering in the distance.. You are sad : (. You know your sandcastle is about to go bye-bye.. Chapter 24 Digestive and Urinary Systems Section 1: Objectives Compare mechanical digestion with chemical digestion. Describe the parts and functions of the digestive system. The Digestive System Physical and Chemical Changes Physical and Chemical Properties Everything around us has physical and chemical properties. Physical Properties Characteristics you can observe without changing the substance into something new. NUTRIENTS IN DIGESTIVE SYSTEM. They. are . substances. . that. . plants. and . animals. . need. . to. . live. and . grow. .. The. . digestive. . system. . is. . the. . group. of . organs. 2.08 Understand the functions and disorders of the digestive system. Essential questions. What are the functions of the digestive system?. How do the functions of chemical and physical digestion interrelate?. To assimilate . food in . bowels. The Process of Digestion. Digestion:. The process of breaking down food into its . MOLECULAR. and . CHEMICAL. components so that these nutrient molecules can cross cell membranes to be used for cellular processes. . The digestive system has . three main . functions: . to convert food into nutrients your body . needs. Absorption. R. id . the body of . waste. To . do its job, the system requires the cooperation of a number of different structures and organs throughout the body, including the mouth, stomach, intestines, liver, pancreas 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. .