Biology Digestion IA 13/03/2013 Jason Gao Rationale: Digestion is the chemical breakdown of food into smaller components that are more easily absorbed. Digestion is a form of catabolism: a breakdown of large food molecules to smaller ones. When food enters into stomach‚ gastric juice starts protein digestion. Gastric juice mainly contains hydrochloric acid and pepsin. The pH value of hydrochloric in the stomach
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Photocatalytic degradation of methylene blue using TiO2 nanoparticles Nupur Mittal Chemical Engineering‚ IIT (BHU) Varanasi. Abstract: The aim of this research is to reduce the pollution caused by methylene blue dye in waste water coming from textile industries. For this purpose‚ TiO2 nanoparticles are made as they show good photocatalytic activity in degradation of dyes into harmless products. Synthesis is done using titanium butoxide and 2-propanol. The particles formed were a little larger
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There are 5 steps to the physical evidence process. Step 1 of the physical process is to respond to the crime. Police officers will need to secure the crime scene and set up communication with other officers and investigators to establish a plan of action. These same officers and investigators must be able to communicate with witnesses at the crime scene. To accomplish this goal‚ the police on the scene must establish what has happened‚ was a crime committed‚ and if a crime was committed how
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ball of steel wool into the test tube and measured the temperature again. We stored the test tubes on the test tube rack to observe the next day. A chemical reaction did occur in the lab. There were a color change and an odor change that was observed on Day 2 of the lab. On Day 1‚ the liquid was clear and the smell was very strong. On Day 2 of the lab‚ most of the liquid was gone but the color was a muddy color and the smell got milder‚ it wasn’t as strong as Day 1. Not only was there a color and
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Department of agriculture- digestive system of a cow‚ koala and dingo Digestion comparison Koala The Koala is the only mammal‚ other than the Greater Glider and Ringtail Possum‚ which can survive on a diet of eucalyptus leaves. Gum leaves contain only about 50% water‚ very little nitrogen‚ large amounts of fibre and potentially toxic oils. Koalas are found to have molars premolars to physically break down the food. Plants contain cellulose‚ which can only be broken down to release cell contents
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11 Digestion 1 Which one of the following structures is not part of the alimentary canal? (a) duodenum (c) liver (b) mouth (d) stomach: 2 Name two digestive glands. 3 What name is given to the muscular contraction which moves food along the alimentary canal? 4 What do digestive enzymes do to food? 5 What are the final digestion products of (a) protein‚ (b) fat‚ (c) starch? 6 How does chewing food help to speed up digestion? 7 Name the enzyme
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Mike Morrison – SCH3U Types of Chemical Reactions Lab Intro/Purpose The purpose of this lab is to determine types of reactions with only the reactants and through observation. Through observing the experiments‚ one is able to see a visual of each type of reaction taking place and it gives them a better understanding of how chemical reactions work and what products they may form. Materials & Procedure Materials: * Wood Splints - Copper Sulfate * Sodium Sulfate - Copper
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04.05 Chemical Reactions: Combustion: Lab Worksheet and Rubric Before You Begin: You may either copy and paste this document into a word processing program of your choice or print this page. Procedure: 1. Iron (III) and copper (II) sulfate solution 2. Fill a small test tube halfway with copper (II) sulfate solution. Add a 2.0 gram iron rod to the solution and observe the reaction. 3. 4. 5. Lead (II) nitrate and potassium iodide solutions 6. Pour about 2.0 mL of lead (II) nitrate into the test tube
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Name: _______________________ Class:_________________ Date:________________ Observations – Label ALL Parts of the Frog External Anatomy of the Frog – External Anatomy #7 [pic] Mouthparts of the Frog – External Anatomy #12 [pic] Digestive system and other Parts of the Frog – Digestive System #3 [pic] Urogenital System of the Frog – Urogenital System #4 [pic] The Frog Heart – Circulatory System #3 [pic] Questions: Use your knowledge of frogs to answer the questions
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University of Phoenix Material Human Digestion Worksheet The Digestive System and its Functions Review the diagram located on p. 1. In the space provided below‚ write the name of each organ or part‚ and explain the function of each one as it relates to digestion and absorption. Explanations must be written as complete sentences. Please make sure that you identify each organ or part below with the corresponding number located in the diagram. DIGESTIVE ANATOMY FUNCTION 1 Mouth The mouth
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