actually putting into their body. We are trying to answer this because it will provide the consumers with accurate results of what contents are within these supplements. In our study we had four testing reagents (Lugol’s which tests for starch‚ Biuret tests for protien‚ Benedict’s that tests for reducing sugars‚ and Ninhydrin which detects amino acids) and four stock solutions at various concentrations (protein in the form of albumin‚ glucose for the sugars‚ amino acid through glycine and just
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EXPERIMENT: Biological Molecules Here are your goals for this lesson: • To conduct tests for glucose‚ starch‚ lipids and proteins • Use these test results to identify the biological molecules found in food Student Name: Brittany Gerdes Date Experiment done:12-20-12 Date Report Completed: 12-20-12 Name of Grader: Hypothesis: A prediction of what you think the results of the project will be. Write your hypothesis before you begin the experiment and‚ if the experiment has
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Macromolecules Lab Purpose: to determine a method of testing for macromolecules. Materials: Knowns: Unknown: Test Solutions: Glucose solution Unknown solution Iodine solution Gelatin solution Benedict’s solution Starch solution Biuret solution Oil Brown paper Water Procedure: 1. Create a data table. 2. Label 5 test tubes with known solutions. 3. Add 10-20 drops of each known solution to respective test tubes‚ do not mix pipets! 4. Add 3-5 drops of a test solution
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name the molecule‚ and the molecular/scientific formula (ie. ethyl alcohol‚ CH3CH2OH). You should know the difference between organic and inorganic molecules. 6. Be familiar with the biochemical tests performed in lab-including the Millon test‚ Biuret test‚ Benedict’s test‚ Iodine test‚ Grease spot and Sudan Dye test. Know what each test is used for- protein (peptide bonds or tyrosine groups)‚ glucose‚ sucrose‚ starch or lipids. You should know the chemicals/reagents in each test and the results
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Carbohydrates‚ Proteins‚ lipids‚ and nucleic Acid Lab Exercise 6 Date: 9/17/12 Bio 102-11 Purpose the purpose of this experiment was to perform test to detect the presence of carbohydrates‚ proteins‚ lipids‚ and nucleic acids. Explain the importance of a positive and a negative control in biochemical test. Use biochemical test to identify an unknown compound. Background Most organic compounds in living organisms are carbohydrates‚ proteins‚ lipids‚ and nucleic acids they are called macromolecules
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INTRODUCTION: Carbohydrates are the product that made up from carbon‚ hydrogen and oxygen. Carbohydrates are form by the combination of carbon dioxide and water molecules. The carbohydrates contain two specific functional group in it which is the hydroxyl groups and carbonyl groups.A reducing sugar is a type of sugar with is an aldehyde group.This means that sugar can act as a reducing agent.The procces of reducing sugar is isomerisation‚example of reducing sugar islactose
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Ellen Grant Honors Bio I Organic Compounds Problems and Objectives: The purpose of this lab was to select the suitable test for an organic molecule and define the safe process for that test. An organic molecule is normally found in or produced by living systems. (Unknown Author‚ 2014‚ www.biology-online.org/organic_molecule)In this lab one was supposed to infer the results of the test and be able to identify if major biomolecules are present. You were to analyze a variety of tests including
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but gives Galactose and a yellow coloured compound‚ 0-Nitrophenol (ONP) Galactose-ONP (colourless) Galactose + ONP (yellow) Image: Formation of ONPG (Paul.H.‚2012) Experiment 5: Quantitative Analysis of protein using a spectrophotometer Using the biuret test‚ we can quantify the concentration of proteins in fluid. And by adopting a spectrophotometer that measures the intensity of light absorbed after it passes through a protein solution‚ we can then determine the absorbance of the protein solution
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Using a designated graduated transfer pipets‚ add 1 ml of distilled water‚ albumin‚ and starch to the according test tubes. Add five drops of Biuret reagent to the tubes with a swirling motion to mix. Reaction is almost instant. Record your observations. Method: Test for Starch Label five new clean test tubes (1 to 5). Using a designated graduated transfer pipets‚ add 1 ml of water‚ starch
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Dropper Introduction: This Lab shows the detection of different food sources using different tests. Some of the food tests carried out was Benedict’s test‚ the test for non-reducing sugars‚ iodine test (test for starches)‚ emulsion test and the biuret test. Carbohydrates include reducing and non-reducing sugars also starches. They have a general Formula of CnH2nOn.They can be classified into three main groups‚ Monosaccharide‚ Disaccharide and polysaccharide. Carbohydrates have many uses such
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