• Composition of Cells
    Composition of Cells Testing for Proteins: The independent variable is the biuret reagent. The dependent variable is the solutions being used as follows; distilled water, albumin solution, and starch solution. If the protein is present, then the biuret will change to a violet color...
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  • Biology
    o Lipids (CHO, as well, but known as “fatty acids”) o Proteins (CHO plus N) o *Nucleic acids (P, S…DNA and RNA) * not studied in lab Carbohydrates = CHO · Glycosidic linkage is between 2 sugars · Groups ***monosaccharides Examples-glucose, fructose...
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  • Basic Chemistry for Inves
    Margaret Vorndam, M.S. Version 42-0030-00-01 Lab Report Assistant This document is not meant to be a substitute for a formal laboratory report. The Lab Report Assistant is simply a summary of the experiment’s...
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  • lab 24
    CHEM 2213 Lab 25 Title: The Detection of Fats, Proteins, and Carbohydrate in Foods Purpose: The purpose of this lab is to perform several general tests which help in identifying fats, protein, and carbohydrates in food. Procedure: Part A- Tests for Detecting Carbohydrates In this part you will...
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  • Bio Lab Carbohydrate
    IDENTIFYING ORGANIC COMPOUNDS Pre-Lab Discussion The most common organic compounds found in living organisms are lipids, carbohydrates, proteins, and nucleic acids. Common foods, which often consist of plant materials or substances derived from animals, are also combinations of these...
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  • macromolecules lab bio 1 lab
    Title: Macromolecule Lab Abstract: The macromolecule lab taught us how to set up a comparison to determine what a positive and negative test for a macromolecule looked like. Afterwards we used our positively tested samples as comparisons to determine whether or not the unknown food...
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  • The Bio of the Thing That Is in Chem
    SBI 4U Lab: Identifying Biological Macromolecules in Food Purpose: The purpose of this exercise will be to i) Identify the macromolecules present in known food samples. ii) Identify the macromolecules present in an unknown food sample and then attempt to identify the origin of that sample...
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  • Organic Compounds Lab Report
    from one cell to the other. The purpose of this lab is to simply determine the absence or presence of the main chemical content of a given substance. In previous labs, there were tests with three chemicals, Lugol's solution, Benedict's solution, and Biuret solution. The tests were qualitative and tested...
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  • Lab 2 Proteins and Starches
    Lab 2: Proteins and Starches Purpose The purpose of this lab is to become more familiar with the organic molecules of proteins and starches. In addition, we will also learn the process of the testing procedures of the aforesaid molecules to determine the presence or absence of a substance. Hypothesis...
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  • mednote
    Lab: Testing for Nutrients Purpose: To observe the indicator reaction test for specific nutrients and test for the presence of lipids, carbohydrates and proteins. Introduction: Substances in food that can be used by an organism for energy or for growth and repair are called nutrients. Nutrients...
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  • Identifying Organic Compunds
    particular compound. You will use several indicators to test for the presence of carbohydrates, lipids and proteins in various foods. Purpose of Lab Activity: * To predict which types of macromolecules are present in various foods. * To use several indicators to test for the presence of carbohydrates...
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  • Veeveert's Work
    Names: _________________________ Period: _____ Date: __________ Honors Biology Chapter 4 Lab: Identifying Organic Compounds 50 Points I. Problem: How are indicators used to test for the presence of organic compounds? II. Hypothesis: Which substances do you think are carbohydrates? Which...
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  • What am I eating anyway?
    understanding of how to identify a small sample of Biomolecules within a wide variety of substances. The specific biomolecules that were observed in the lab were Sugar, Starch, Protein, and Lipids. These 4 Biomolecules were tested within the foods applesauce, peas, and turkey gravy. These biomolecules were...
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  • Idk Really Idk
    Lab # 3: Biologically important molecules Introduction: Most organic compounds in living organisms are carbohydrates, proteins, and lipids. Each of these macromolecules are made up of chains linked by dehydration synthesis. The purpose of this lab was to preform tests to detect the presence of carbohydrates...
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  • Test for the Presence of Macromolecules
    drops of iodine solution into the testing solution in the spot plate, then observe for the colour change, if the colour changes from yellow to blue-black, that’s mean the testing solution contains starch. If the colour changes from yellow to brown, that’s mean the testing solution contains glycogen. 2...
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  • Organic Nutrients Lab Report
    Who Took Jerell’s iPod? Lab Purpose: Standardized Tests The purpose of testing the organic nutrients (vegetable oil, glucose, starch, powdered egg white) with each of the different indicators (brown paper towel, benedicts, iodine, biurets) was to determine the color it would turn with positive...
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  • Spit Lab
     10/29/10 Honors Biology Period 12 Chemical Aspects of Life & Spit Lab ABSTRACT: The objective for the Spit lab was to test two different types of crackers for the presence or absence of starch and of reducing sugars. Also, to test the chewed cracker, the one that didn’t have a reducing sugar...
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  • Biruet Test
    Biruiet Test: Procedure Instead of the Biuret Reagent, the following may be used: * Fehling’s Solutions A and B * Sodium hydroxide and copper (II) sulphate solutions 1. Add 2 cm3 of the liquid food sample* to a clean, dry test tube 2. Add 2 cm3 of Biuret Reagent. Alternatively: * Use sodium...
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  • Chemical Aspects of Life
    Lab Report Experiment #3 Chemical Aspects of Life The objective of the Reducing Sugar Test was to test if the substance has a reducing sugar in it by adding Benedict’s solution and heating it, there would be a color change if a reducing sugar is present, or it will remain blue (no reducing sugar)...
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  • Lab on Deck
    Abstract: Throughout this lab, nutrient testing for lipids, carbohydrates, and proteins will take place using indicators. Introduction: The most common organic compounds in organisms are lipids, carbohydrates, proteins, and nucleic acids. Certain things called indicators, or substances that change...
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