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    Review Sheet 39b

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    Print Form R E V I E W version 8 S H E E T EXERCISE 39 B NAME ____________________________________ LAB TIME/DATE ________________________ Chemical and Physical Processes of Digestion: Computer Simulation Carbohydrate Digestion The following questions refer to Activity 1: Assessing Starch Digestion by Salivary Amylase. 1. At what pH did you see the highest activity of salivary amylase? 7.0 Why? because that is when the salivary is most effective and it breaks down carbohydrates

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    Aerobic and Anaerobic Biodegradation This document provides an in‐depth explanation‚ detailing the processes of aerobic and  anaerobic biodegradation.  It is intended for general audiences and will provide the reader with  the necessary information to understand what is happening during the biodegradation process.   For those interested in the biochemical processes of the microbial organisms this document will  provide a high level explanation of the aerobic and anaerobic processes.      Biodegradation 

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    The Digestive System

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    steps that take place in many different organs.<br><br>The first step of digestion begins at the mouth‚ where the food enters the mouth. Saliva is secreted from the salivary glands. The saliva contains enzymes such as Ptyalin‚ which starts sugar digestion. The enzymes also provide lubrication to help in the chewing and swallowing of the food. The food then goes down the esophagus and into the stomach‚ where the next step of digestion takes place. <br><br>In the stomach‚ a mixture of hydrochloric acid

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    Observation of Digestive and Circulatory System Introduction/Background: This week’s lab is about digestion and the circulatory system. Students will be learning about the different types of digestion and circulatory systems for different types of animals. Students will learn not only about the mechanical and chemical components of digestion‚ but also the complete and incomplete digestions. The lab will also teach the open and closed‚ single and double‚ circulation patterns. Several different models

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    mainly digested. Then it goes into the liver where it gets transported into the intestines and out the anus. What is the difference between mechanical and chemical digestion? The difference between mechanical and chemical digestion is that mechanical mainly happens with animals teeth and rarely happens with anything else. Chemical Digestion mainly happens with the acids and chemicals inside the animals body’s. The difference is that one is manual and one is automatic. Most animals have both these features

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    Heterotrophic Nutrition

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    bacterial spores. May have to overcome prey defences (e.g. spines‚ prickles‚ noxious chemicals) and therefore might need weapons of attack or immunity to these chemical defences. The food has to be made usable by the consumer by a process of digestion. Material that is indigestible will have to be voided. Foods are usually dead or alive body parts and generally consist of large‚ complex organic molecules that need breaking down to smaller chemically simpler forms. small‚ simple organic and

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    The digestive system

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    digestive enzymes and other chemicals acting on food as it passes through the GI trac In chemical digestion‚ large food molecules are reduced to smaller molecules that can be absorbed through the lining of the intestinal wall and then distributed to body cells for use. This process of altering the chemical and physical composition of food so that it can be absorbed and used by body cells is known as digestion‚ and it is the function of the digestive system Part of the digestive system‚ the large intestine

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    INTEGUMENTARY SYSTEM

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    INTEGUMENTARY SYSTEM FUNCTIONS 1. Covering and protection 2. Secretion (cutaneous gland) 3. Excretion of metabolic wastes (cutaneous gland) 4. Sensation (presence of nerve endings and tacticle) 5. Respiration – in frog 6. Absorption – in frog 7. Regulation of body temperature HOMOIOTHERMOUS ANIMALS- warm blooded animals or those with regulated body temperature because of their heat-conserving body. POIKILOTHERMOUS ANIMALS - cold blooded animals whose body temperature closely follows

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    reintroduces digestive enzymes to the process. Once digestion is completed the nutrients are passed through the intestinal wall and into the bloodstream. For most of us the food entering our stomach is severely enzyme deficient because of processing and cooking.  Any food that sustains heat of approximately 118 to 129 degrees fahrenheit destroys the enzymes. The food then sits there for an hour‚ like a heavy lump‚ with very little pre-digestion taking place. This forces the body to produce large

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    Exercise 8: Chemical and Physical Processes of Digestion: Activity 3: Assessing Pepsin Digestion of Protein Lab Report Pre-lab Quiz Results You scored 40% by answering 2 out of 5 questions correctly. 1. Where in the body does protein digestion begin? You correctly answered: b. the stomach 2. The substrate for pepsin is You correctly answered: d. protein and peptides. 3. In this activity the substrate you will be using to detect protein digestion is Your answer : a. pepsin. Correct answer:

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