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
Free Ion Sodium chloride Silver
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
Free Glucose Carbohydrate Protein
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
Premium Milk Cheese Yield
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
Premium Protein Molecular biology Gel electrophoresis
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
Premium Carbohydrate Glucose DNA
Biological Molecules Experiment-Specific Questions Experiment 1: Monosaccharide Test 1. Fill in the table below with the results from the monosaccharide test experiment‚ and your conclusions based on those results. Results Monosaccharide Test Solution Initial Color Color with Benedict’s Solution Color After Heating Monosaccharide? glucose solution clear blue orange yes water clear blue blue no sucrose solution clear blue
Premium Glucose Carbohydrate Protein
is the prediction because the belief is that Sample B is milk or cheese therefore containing lactose‚ fat‚ and protein. Methods Materials: 14 test tubes‚ 1 test tube rack‚ 1 paper towel‚ 5 ml Benedicts solution‚ .5 ml Iodine solution‚ 2 ml Biuret reagent‚ hot plate‚ samples 1-5‚ A‚ and B. Procedure: Obtain materials‚ Label the test tubes 1-5 ad A and B
Premium Nutrition Metabolism Scientific method
followed without any variations in materials and methods. The number for the unknown solution is‚ #128. Results The Results of Each Solution When Mixed with Each Type of Tests Test Tube Samples | Benedict Before After | Biuret | Iodine | #1. 1% glucose solution | light blue | red/brown | light blue | pale yellow | #2. 0.3% glucose - 1- phosphate | light blue | no colour change | light blue | pale yellow | #3. 1% maltose solution | light blue | red/brown | light blue
Premium Glucose Carbohydrate Starch
These biological macromolecules are to be identified by the changes in colour through three different tests - Iodine Test for starch and glycogen‚ Benedict ’s Test for reducing sugars‚ and Biuret Test for Proteins. However‚ only two macromolecules are being identified in this experiment - carbohydrates and proteins. There are 12 solutions to be tested in this experiment. The Iodine test is used to indentify starch and glycogen in the given
Premium Protein DNA Metabolism
were mixed thoroughly. Test tube 1 was placed under a flame for observation. Colour change within the test tubes were recorded. Protein test 10 test tubes were used and lab-elled. 9 of the test tubes were filled with 5ml of food sample. 3 drops of Biuret reagent were added to each of the test tubes. The test tubes were gently shaken to mix the solution. Observation of colour change was
Premium Protein DNA Oxygen