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    TESTING FOR MACROMOLECULES Describe the positive test for starch. Explain how you know. The positive test for starch is adding iodine solution. In the experiment‚ the starch solution had the most dramatic reaction with the iodine solution. It turned to an opaque bluish-purple solution while other samples all turned to a colour related to orange and yellow other than the vegetable oil. But the vegetable oil was more translucent than completely opaque. Describe the positive test for

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    Macromolecules of Life

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    Macromolecules of Life Exercise 1: Testing for Proteins In this experiment Biuret Color is added to four substances‚ egg white‚ pepsin‚ sugar‚ and distilled water to test the detection of protein in each substance. Substance Tested Predicted Results Biuret Color & Number of drops added 1. Egg White Change color 5 drops –turned a yellow/light brown 2. Pepsin Change color 5 drops- turned purple 3. Sugar No Change 5 drops-no change in color 4. Distilled Water No Change 5 drops-no

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    Food Macromolecules

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    Food Macromolecules Denise Rhodes Walden University March 20‚ 2011 Food MacromoleculesMacromolecules are a source of fuel. There are four major types of macromolecules-proteins‚ carbohydrates‚ nucleic acids‚ and lipids. This process plays important roles in the life of a cell. (Macromolecules‚ 2002). The macromolecules that was present in the packaged food product Lipids which are fats. According to (Alters & Alters

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    Sample Section Report

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    Fisher-Price Toys‚ Inc. Fisher-Price‚ a toy company that was founded in 1930‚ was known for its durable‚ safe‚ high-quality‚ and fun products sold at low to moderate prices‚ and had established itself as a leading producer of toys over the years. In fact‚ 82.7% of participants in a Redbook study named Fisher-Price the brand of pre-school toys that they buy the most often. In the summer of 1970‚ marketing vice president Jack Asthalter found himself confronted with a difficult decision: whether to

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    My Physics Lab Results

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    My lab results were similar to my hypothesis. My hypothesis was that the densest object would be the rubber stopper. In the lab results the densest object was the penny and the rubber stopper was second. My hypothesis was switched. My hypothesis was correct when I stated that the macaroni was the third densest object. My hypothesis was also correct for the dice‚ but the bead and the dice share the same density. So they are both the fourth densest item. I was wrong with my hypothesis when I placed

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    Lab report

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    Lab #4: The Immune System Purpose: The purpose of this lab was to perform and understand the procedures of conducting an ELISA test to determine whether a particular antibody is present in a patient’s blood sample through a virtual simulation. Hypothesis: If I successfully complete this lab‚ I will then understand how to perform an ELISA test‚ the purpose an ELISA test‚ and also how to interpret the results of this test. Materials and Procedures: Materials: Howard Huges medical

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    Lab Report

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    Determination of presence of protein in a variety of food substances by the use of Biuret Reagent Biol. 1040 Section 1005 Introduction The human body consumes carbohydrates‚ lipids‚ and proteins each day by eating a variety of foods. These foods are required for energy and human growth. Proteins are a diverse group of macromolecules with many different functions (Mbuthia‚ 2012). Many are structural components of bone‚ muscle‚ hair‚ tissue‚ etc. Others are enzymes that speed up cellular

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    Lab Report

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    Lab Report 7: Analysis of Cereal Introduction: The objective of this lab was to consult for the FDA regarding a recently surfaced scandal involving false reporting of iron content in cereal as well as iron tablets. The makers of the cereal and the iron tablets‚ respectively‚ were allegedly reporting higher amounts of iron in their products than actually existed‚ as a way to save money but continue to provide products with “adequate” amounts of iron. The FDA needed consulting in order to analyze

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    Lab Report

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    Water is allowed to enter from the hydraulic bench into the flow measuring apparatus through the venturi meter which consists of a gradually converging section‚ a throat and a gradually diverging section. The flow continues through the orifice plate meter for some distance after experiencing a change in cross-section and a rapidly diverging section. After that the flow continues into a further settling length and a 90o bend and finally reaches the rotameter. The rotameter consist of a transparent

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    Lab report is one way we used during of after an experiment in a laboratory to subtly record and discuss the experiment. During a lab‚ we sometimes can observe only the physical part of the experiment‚ or may be some visible chemical changes. These changes indicate that the experiment we do is successful or not. However‚ in order to understand and achieve more from just simply doing the experiment‚ we write lab report to more profoundly understand the internal meanings of the experiment we do‚ and

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