Macromolecular Composition of the Liver Cell Formal Report Aims The aim of the experiment was to test for the presence of DNA‚ RNA‚ protein and glycogen in the cytoplasm and the nucleus of bovine liver cells. From the findings of the results the distribution of these macromolecules can be shown within the liver cell. This was carried out by undertaking qualitative experiments‚ where the observation of a colour change was noted and a quantitative experiment‚ where numerical data was recorded from
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reducing sugars and this would be carried out by using Benedict’s test. To find out which substances had starch present using iodine To find out which substances were lipids using the emulsion test To test for proteins in the substances using the biuret test Context of the experiments: The context of this experiment was that we were interested in finding out what biological compounds we were dealing with as we had no idea what each substance was and all samples looked the same therefore we had
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lipid tests were the dye test which was a more specific test to find the substances that all contained a fat by using a solution of Sudan 4 and water. The protein test’s purpose was to determine all the test materials that contained a protein by using biuret solution. The procedure for the Spit lab was to perform the starch test and reducing sugar test on both crackers. Then chew up the cracker that doesn’t have reducing sugars. Next‚ test the sample for a reducing sugar. The results of the Chemical Aspects
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Protein Hydrolysis and Characterization Group 7 Niez‚ Robert Francis‚ *Orbin‚ Alfonso Ricardo* Parro‚ Athena Emmanuelle Peralta‚ Christian Department of Biological Sciences‚ University of Santo Tomas‚ Manila‚ Philippines • Abstract Hydrolyzed Protein is protein that has been hydrolyzed or broken down into its component amino acids. While there are many means of achieving this‚ two of the most common are prolonged boiling in a strong acid (acid-HVP) or strong base or using an enzyme such
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and attention will be paid to the correct use of the significant figures. The experiment approach that will be used will tell the mass and volume of the metal and liquid determined by measuring these two quantities with a graduated cylinder and biuret. Procedure: a) The density of metals First I obtained a quantity of unknown metal. Recording the unknown number. I used only one type of metal for this part of the experiment. The unknown metal that I was instructed to use was a chunk‚
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The quantitative and qualitative analytical techniques used‚ suggesting improvements for Future investigations D1 Titration: positive aspects of experiment in terms of accuracy -Checking to see if any air bubbles were present and if the burette was leaking before doing the titration. If I did not do this‚ it would alter the end point and hence the titre results. -Recording the volume reading before doing the titration. -Making sure I was
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Date 11/10/14 Partner if applicable Part I: Observations of formation of casein precipitate The milk began to curd. As the curd increases the milk appeared more clear at times. Mass of casein 1.65 g Part II: Test tube Observation of CuSO4 biuret Test Test Results (+ or -) Casein Solution turned violet + Egg white solution turned violet + Water solution turned blue - Sugar solution turned blue - Postlab Questions 1. Whas is the theoretical yield of casein based on the table of Milk Composition
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Veronica Guerrero Macromolecules of Life The macromolecules of life experiment involves the biology of life. The biology of life includes carbohydrates‚ lipids‚ proteins and which will not be included in this experiment nucleic acids. The introduction of this experiment will reference how to become familiar with lipids‚ carbohydrates‚ and proteins. It will also include the knowledge of how these macromolecules function in living organisms. This experiment will identify the macromolecules
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BSC 2010C.LAB TH 7-9:50pm 29 August 2013 Biology Lab Report Lab #1 –PROTEIN EXTRACTION LAB I. INTRODUCTION To begin the process of protein extraction and compare the results in a study‚ it is necessary to understand the importance of proteins‚ the process of extraction and how you are using the results to determine a rational conclusion. First understand proteins and the necessity of studying their impact. Proteins are essential molecules for biological functions and are the
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water (DW)‚ slurries of honey‚ egg white‚ and saltine crackers dropper of IKI solution (starch test) dropper bottle of Benedict’s reagent (glucose test) dropper bottles of 10% NaOH and 2% CuSO4 (Biuret Reagents – protein test) 95ºC water bath masking tape for labeling test tubes Procedure: Biuret test for a typical protein: Place a small piece of masking tape on 7 clean test tubes. Using a permanent marking pen‚ label the tubes 1-7. Add drops of solutions to each tube as follows: |Tube
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