REVIEW SHEET EXERCISE 8 Chemical and Physical Processes of Digestion NAME: LAB TIME/DATE: 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? Why? 2. How do you know that the amylase did not have any contaminating maltose? 3. What effect did boiling have on enzyme activity? Why? 4. Describe the substrate and the subunit product of amylase
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Khadijah Lockhart Biology Lab Report November 4‚ 2013 Title: Starch Digestion by Pancreatic Amylase Statement of the Problem: What happens to enzymes when they are boiled? If digestion doesn’t occur‚ which will be present starch or maltose? If digestion does occur‚ which will be present starch or maltose? Hypothesis: I predict that when enzymes are boiled‚ they will become larger. If digestion does not occur starch will be present‚ and if it does occur maltose will be present. Materials:
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AP Biology: Unit 3: Cell Division & Genetics: Virtual Lab #4: Punnett Squares Instructions 1. Open the Virtual Lab: Punnett Squares: http://www.mhhe.com/biosci/genbio/virtual_labs_2K8/labs/BL_05/index.html 2. The virtual lab simulation will be on the right side of the screen‚ and the “Question” column will be on the left side of the screen. 3. Click on the TV/VCR and watch the video. 4. Read the background information in the Question Column under “How can Punnett Squares help predict
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mouth is a part of the body where people use mechanical digestion and use their teeth to break down their food. With the help of saliva produced by the salivary glands‚ which produce enzymes‚ food is able to be broken down further. This is also the place where ingestion takes place” “What are enzymes” “Enzymes are very efficient catalysts for biochemical reactions. In the mouth there’s an enzyme that will help your food undergo chemical digestion” “What is it” “It is amylase. Which help digest starch
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Digestion begins in the mouth when one eats food. It begins the moment one takes a sandwich bite. The teeth are used to break the sandwich that contains lettuce and pickles into smaller particles or boluses so that the enzymes can digest the food much easier. Lettuce contains carbohydrates‚ proteins and fat. The tongue helps turn food in the mouth and mix with the saliva in the mouth which contains salivary amylase enzyme. It then passes through the esophagus to the stomach which is a mixer and grinder
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Objective: To investigate how pH affects the rate of protein digestion Hypothesis: I predict that since pepsin breaks down the material the quickest at a pH of 2 in the stomach‚ test tubes #3 will reduce the greatest because it has pepsin to further break down the egg. Whereas the other test tubes will have a smaller reduction. I think test tube #2 will have the second largest reduction rate and then #6 because they all will have a greater rate at breaking down the material‚ Then‚ I predict the
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University of Phoenix Material Environmental Science and Human Population Worksheet Using the textbooks‚ the University Library‚ or other resources‚ answer each of the following questions in 100 to 200 words. 1. What would you include in a brief summary on the history of the modern environmental movement‚ from the 1960s to the present? October 2‚ 1968 The Wild and Scenic Rivers Act‚ the National Trails System Act January 1‚ 1970 The National Environmental Policy Act (NEPA) April 22‚ 1970 The
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3.0 Introduction The methodology involves five main steps; the collection of hair samples‚ the distribution of questionnaires‚ the washing of samples‚ the digestion of the samples‚ and the analysis of metal contents in the hair. 3.1 Materials and reagents used during the experiment The apparatus and chemicals that were used in the previously mentioned experimental steps are summarised in table 3.0. Steps Materials Reagents Collection of hair samples 1. Stainless Steel Scissors 2. Plastic bags
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BIO 219 Group 1 Section 66 October 19‚ 2012 The extraction of purified DNA from A. fischeri by restriction digestion using Sal I enzyme and pGEM for shotgun cloning Introduction: The ultimate goal of this experiment is to isolate the lux operon‚ a targeted piece of DNA that causes bioluminescence‚ from Aliivibrio fischeri and insert it into the DNA of Escherichia coli in order to make it glow. A. fischeri is a gram-negative bacteria which participates in a symbiotic relationship with
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believe the mother is part to blame for Hank¶s fixationbecause he was spoiled into a self center person‚ without him even noticing.Also his boss utilized his computer skills and made every attempt to keep him awayfrom clients. This is an example of poor human resources. The company apparentlyhas no desire to make an attempt to inform Hank of any constructivecriticisms. Hank is not given an opportunity to learn from his mistakes. This casestudy shows that the work environment lacked poor
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