Lab Report 8 April 15th Exercise 8: Chemical and Physical Processes of Digestion Lab Report Questions Activity 1 What is the difference between the IKI assay and Benedict’s assay? IKI assay detects the presence of starch‚ and the Benedict assay tests for the presence of reducing sugars as well as IKI turns blue black whereas Benedict is a bright blue that changes to green to orange to reddish brown with increasing levels of maltose What was the purpose of tubes #1 and #2? Why are they
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Amylase Enzyme vs. Starch vs. pH vs. Temperature Taylor Ellsworth Professor Michael Bunch Cell Biology 112 “Effects of Amylase reaction time when breaking down starch.” Experiment Goal: The goal of our experiment was to understand the similarities in digestion by finding out how long it takes for the amylase enzyme‚ found in saliva‚ to break down our substrate‚ starch. Hypothesis: While understanding that starch is broken down by our saliva (amylase enzyme) we predict that the higher
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39 Dippin’ Dots Ice Cream Alan B. Eisner Pauline Assenza Brian R. Callahan McGraw-Hill/Irwin Strategic Management: Text and Cases‚ 4e Copyright © 2008 by The McGraw-Hill Companies‚ Inc. All rights reserved. 39 - 3 Dippin’ Dots Ice Cream Icebreaker Question • How many of you have tried a specialty ice cream? • How many of you have heard of “Dippin’ Dots?” • How do you make decisions about which dessert products to buy? • Where do you buy frozen dessert products? • How willing are you to experiment
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Handout Master 2.1 Mapping the Brain Draw a Brain ( or Download if you want) Label the diagram of the brain to show or answer the following questions. 1. Is this a drawing of the left side or the right side of the brain? What are the particular functions of that side of the brain as compared to the other hemisphere? Right side of the brain Left side functions: considered to be adept at task Right side functions: best at expressive that involve logic‚ language and analytical thinking
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6.1.1 Explain why digestion of large food molecules is essential. There are two reasons why the digestion of large food molecules is vital. Firstly‚ the food we eat is made up of many compounds made by other organisms which are not all suitable for human tissues and therefore these have to be broken down and reassembled so that our bodies can use them. Secondly‚ the food molecules have to be small enough to be absorbed by the villi in the intestine through diffusion‚ facilitated diffusion or active
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Chapter 39 The Stalemated Seventies Sources of Stagnation 1. Sudden slump in productivity was attributed to the increasing presence in the work force of women and teenagers who had fewer skills than adult males and were less likely to take full time‚ long-term jobs-some blamed it on new machinery but no one knows for sure. 2. During Nixon’s presidency‚ Americans experienced the first serious inflation since the immediate post World War II years. Nixon “Vietnamese” the War 1. He could be brittle
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Biology Lab Report Research Question: Effects of pH on amylase activity Introduction: Amylase is an enzyme that is in human’s saliva as well as the pancreas. Enzymes are biological catalysts that speed up a chemical reaction. They break down complex molecules into simple ones. In this case‚ amylase converts starches (complex molecule) into simple sugars. That is why foods like potatoes for example‚ may taste sweet to us‚ because they contain starch. The optimum pH for pancreatic
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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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PLANNING COURSEWORK- STARCH AND AMYLASE AIM The aim of this coursework is to investigate the effect of temperature change‚ on the rate of hydrolysis of starch catalysed by amylase. PREDICTION I think that as the temperature increases‚ the rate of reaction also increases‚ to a point when it dramatically decreases. On graph 1‚ you will see a sketch of the graph which I expect to be the result of the experiment. SCIENCE REASONING I think my prediction is correct because the rate of
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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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