Glucose Essays & Research Papers

Best Glucose Essays

  • Glucose Oxidase - 628 Words
    Glucose Oxidase and Its Various Uses Aaron Truong Since glucose oxidase has an end product called hydrogen peroxide, which is a harmful substance to bacteria, it can be used to fight bacteria, or sterilize objects (can have various uses such as in hand sanitizers, toothpaste, soap, etc), not just biosensors. Another key part in the reaction would be C6H12O6, or glucose. Glucose oxidase can be applied to diabetics as mentioned earlier, as biosensors work by "keeping track of...
    628 Words | 2 Pages
  • Glucose and Marks - 2480 Words
    Biological Molecules Revision Questions 1. Maltose and sucrose are disaccharide sugars in which a bond joins two monosaccharide molecules. Sucrose is formed by the formation of a bond between carbon 1 of a glucose molecule and carbon 2 of a fructose molecule. (i) Name the bond that joins the two molecules to form a disaccharide. ......................................................................................................................... [1] (ii) Complete the diagram below...
    2,480 Words | 11 Pages
  • Glucose Homeostasis - 2645 Words
    Glucose homeostasis The fed state Presentation copyright © 2007 David A Bender The central nervous system is very largely reliant on glucose as its metabolic fuel; it cannot oxidise fatty acids (but can metabolise ketone bodies in prolonged starvation) glycogen Red blood cells are absolutely reliant on glucose; they have no mitochondria and form ATP only by anaerobic glycolysis triacyglycerol protein glucose triacylglycerol in VLDL triacylglycerol in chylomicrons...
    2,645 Words | 85 Pages
  • Glucose and Carbohydrates - 555 Words
    Carbohydrates For my health project I did carbohydrates. They are the bodies energy source. Carbohydrates supply the body with the energy it needs to function. They are found almost exclusively in plant foods, such as fruits, vegetables, peas, and beans. Milk and milk products are the only foods derived from animals that contain a significant amount of carbohydrates. Carbohydrates are divided into two groups, simple carbohydrates and complex carbohydrates. Simple carbohydrates,...
    555 Words | 2 Pages
  • All Glucose Essays

  • Determining the glucose concentration in Sprite
    Name: Raj Bose Date: 23/1/2015 Partners: Sunniva & Bayu Determining the concentration of glucose of 7UP Glucose solutions prepared as follows:- In each case 250.0 cm3 volumetric flasks used Concentration (%) Mass/g 4.00 10.00 8.00 20.00 12.0 30.00 16.0 40.00 20.0 50.00 Table: 1- Recording of concentration, volume, and qualitative observations of various solute/solvent/solution used during the experiment. Name Concentration (%) Volume (ml) Qualitative Observations Glucose (C6H12O6) 5 different...
    954 Words | 7 Pages
  • Carbohydrates: Glucose and Taste Threshold
    Practical 1 : Carbohydrates Introduction : Carbohydrates are important to human life , this practical is to investigate physical , functional and sensual properties of different carbohydrates , including monosaccharides and disaccharides . Experiment 1 Title : Relative Solubility of Carbohydrates , Glucose , Galactose and Lactose . Objective : To determine the relative solubility of glucose , galactose and lactose by measuring their saturation point at the same constant temperature....
    889 Words | 6 Pages
  • Chemistry: Glucose and Sports Drinks
    Determination of Sugars in Sports Drinks: A Spectrophotometric Analysis By: Crystle Culling Student Number: 2686923 Class: Tuesday 12pm (odd weeks) Page | 1 1015MSC Lab Report Crystle Culling 2686923 Abstract The concentration of sugars in two well-known sports drinks, Powerade and Gatorade, were determined by monitoring an enzyme-catalysed reaction sequence involving the appearance of NADPH. Sucrose and glucose concentrations were calculated from the concentration of NADPH...
    2,110 Words | 9 Pages
  • Glucose and Identifying Nutrients Gizmo
    Student Exploration: Identifying Nutrients Directions: In this online lab, you will be practicing identifying nutrients found in food. 1. Go to explorelearning.com 2. Login using the username/password your online teacher gave you at the beginning of the semester. If you forgot it, check your messages in blackboard. Most likely your username and password are your FirstnameLastname (no spaces). 3. Find the “Identifying Nutrients” gizmo. 4. Click on launch. Let’s get started....
    973 Words | 5 Pages
  • Oral Glucose Tolerance Test
    Experimental Purpose The purpose of the Variables in Glucose Tolerance lab was to examine the changes in blood sugar during glucose tolerance test conducted with test rats. We will be using three rats and perform the Oral Glucose Tolerance Test to measure the glucose levels in the rats blood. The oral glucose tolerance test is a laboratory method to check how the body breaks down (metabolizes) blood sugar. Glucose is the sugar that the body uses for energy. Patients with untreated diabetes have...
    1,179 Words | 3 Pages
  • Glucose Tap Water - 450 Words
    Eric Lab 2 Questions 1. Monosaccharides and polysaccharides are two classes of Carbohydrates 2. Long chains of amino acids make up Proteins_ and contain the atom _Nitrogen which is unique to this macromolecule. 3. Fats like triacylglycerols are the macromolecule ___lipids_____. 4. You just reviewed type of carbohydrates. Glucose is a simple sugar called a monosaccharide , whereas starch contains compound carbon chains and is a polysaccharide . 5. Polysaccharides are formed by a...
    450 Words | 2 Pages
  • Glucose and Cellular Respiration - 1357 Words
    ABSTRACT The effect of co-factor (MgSO₄) and the nature of substrate on the rate of cellular respiration in yeast were determined using two different set-ups. In the first set-up, two test tubes were used where one contains 7m and the other with 7 mL 0.2M MgSO₄ and both containing 7mL 10% yeast suspension. Here, data shows that the H₂O mixture showed higher amount of CO₂ evolved than MgSO₄. In the second set-up, six Smith fermentation tubes were used each containing different 15mL solution...
    1,357 Words | 4 Pages
  • Investigating the Oral Glucose Tolearnce Test
    Investigating the oral glucose tolerance test Aim: To carry out glucose tests on stimulated blood plasma samples if glucose is present in blood plasma. Risk Assessment: Hazardous chemical or microorganism being used or made, or hazardous procedure or equipment. Nature of the hazard(s) Source(s) of information Control measures to reduce the risks Sulphuric acid - Irritant - Very corrosive CLEAPS Wear eye protection & wear lab coat. Try not to spill chemical. Potassium manganate - Harmful...
    436 Words | 2 Pages
  • Carbohydrates: Glucose and Brick Red Precipitate
    General and Specific Reactions for Qualitative Analysis of Carbohydrates Yurika Kinoshita, Franz Liangco, John Bosco Magsuci and Princess Maristela Department of Chemistry, Univeristy of Santo Tomas, Manila, Philippines Abstract Carbohydrates, which are polyhydroxy aldehydes or ketones, are considered the most abundant biomolecules on Earth. Amylose and cellulose, which are polysaccharides, serve as storage and structural molecules, respectively, by most organisms. Both of these molecules...
    2,902 Words | 8 Pages
  • Macromolecules: Glucose and Lab Manual Pg.
    Exercise 4.4: Identification of Macromolecules in Household Substances The purpose of this lab is to determine the presence of glucose, starch, and protein in various samples through standard tests. Solution 1: Formula I believe formula will test positive for sugar and protein since it is supposed to be a nutritious, balanced drink for infants. Materials and Methods: Please refer to the Biology 1406 Lab Manual Pg. 43 Test For | Coloration/ Appearance of Positive Control |...
    392 Words | 3 Pages
  • Glucose Concentation Experiment (Lab Report)
    RESEARCH QUESTION How does the glucose concentration effects the time taken for the potassium permanganate to decolourise from purple to colourless ? HYPOTHESIS The higher the glucose concentration the shorter the time taken for the potassium permanganate to decolourise from purple to colourless. VARIABLES VARIABLE | UNITS | RANGE | METHOD FOR CONTROL | INDEPENDENT VARIABLE-Concentration of glucose solution | % | 5%10%15%20%25%30% | Different glucose concentration are tested |...
    2,200 Words | 8 Pages
  • DETERMINING THE GLUCOSE CONTENT OF AND ORANGE USING GOD
    DETERMINING THE GLUCOSE CONTENT OF AND ORANGE USING GOD-PAP ASSAY Every fruit has a sweet taste only that some are sweeter than others. The sweetness of most fruits come from its sugar content and these sugars that the fruits contain are known as invert sugars. In this experiment, an orange was used. An orange which is an excellent source of vitamin C gets its sweetness from natural sugars which are sucrose, glucose and fructose (livestrong.com). In this experiment the concentration of glucose...
    1,441 Words | 5 Pages
  • The Effect of Glucose Concentration on Anaerobic Respiration in Yeast
    THE EFFECT OF GLUCOSE CONCENTRATION ON ANAEROBIC RESPIRATION IN YEAST INTRODUCTION: Yeast, also known as a saccharomyces cerevisiae, is single celled eukaryotic cells that are in the kingdom fungi and are unicellular organisms which normally reproduce asexually by budding at a very high rate. Scientists quite often decide to work with yeast because of its features fast growing rate and the fact that yeast's DNA can be easily manipulated. Some types of yeast can be found naturally on plant or...
    873 Words | 5 Pages
  • Glucose Found to Produce the Most Co2 in Sugar and Yeast Fermintation Experiment
    INTRO: Cellular respiration is a process that happens in all living eukaryotic cells. What cellular respiration does is turn food often carbohydrates into energy for our bodies. Cellular respiration starts with a carbohydrates sugar called glucose. What it does is alter and break down the six carbon molecule glucose and altering it creating two three carbon molecules called pyruvic acids in an anaerobic process called glycolosis (Cellular respiration). What this process does is create two ATP...
    799 Words | 3 Pages
  • All Sugars Are Not Created Equal: the Effects of Glucose Versus Fructose on the Human Body
    All Sugars are not Created Equal: The Effects of Glucose versus Fructose on the Human Body All Sugars Are Not Created Equal: The Effects of Glucose versus Fructose on the Human Body Sugar has occurred naturally in our environment since the dawn of time, and mankind has been enjoying its sweet taste almost that long. After all, glucose occurs naturally in corn, fructose is the natural sweetener found in fruit, sucrose occurs naturally in sugar beets and cane, and lactose is found in...
    1,646 Words | 5 Pages
  • the effect of different concentrations of glucose on anaerobic respiration in yeast cells
    Introduction I am going to try and measure the rate of respiration in yeast and find out what factors affect the rate of respiration. I am going to change the concentration of the glucose solution and I’m going to measure the volume of gas produced during respiration in cm³. Yeast contains enzymes. Enzymes speed up a chemical reaction – they’re biological catalysts. Yeast can respire both aerobically and anaerobic; the anaerobic respiration of yeast is known as fermentation. The equation...
    814 Words | 4 Pages
  • Fermentation Lab - 433 Words
    Fermentation Lab: Conclusion & Evaluation of the Effect of Type of Carbohydrate on Amount of CO2 Produced IB Biology/Topic: 3.7 05 February 2013 Question: Which type of carbohydrate, glucose, sucrose, or starch, will produce the greatest amount of fermentation over the class period? Why? Hypothesis: If the carbohydrate starch is added to the set up of yeast, then it will create the greatest amount of fermentation because starch is a...
    433 Words | 2 Pages
  • Lab 1 Carbohydrates - 2254 Words
    Lab BCH2333 Section: 4 (Monday afternoon 1st week) Experiment 1: Carbohydrates Separation Techniques Based on Molecular Size Demonstrator: Date Preformed: January 26th, 2015 Date of Submission: February 2nd, 2015 Team #: Purpose The purpose of this experiment is essentially two-fold. Two of the four experimental procedures of this laboratory will be used to gain a conceptual and practical understanding of separation techniques used to isolate monomers from their respective polymers....
    2,254 Words | 21 Pages
  • estimating osmolarity - 855 Words
    Estimating Osmolarity by change in weight Abstract Water flows in and out of cells in an attempt to attain a state of equilibrium. The concentration of solutes to solvent in the cells environment is the cause of the water flow. Plant and animal cells can be negatively affected or positively affected due to the concentration balance in their environment. Potato cells were used to see the affects of sucrose in different concentrations. In...
    855 Words | 4 Pages
  • Test for starch - 720 Words
    Brittney Humphries. Title: Testing for the Presence of Starches, and Proteins Purpose: To test for the presence of starches and protein macromolecules, to introduce the concept of variations in chemical compounds. Hypothesis: If biuret is blue after a test for protein, then it is a negative result because biuret reagent is blue to begin with. If a solution is pinkish purple, or purple, then the test for protein is positive. The test solution for starches is yellowish brown. If any...
    720 Words | 3 Pages
  • Biological Molecule - 1068 Words
    Haggerston School Biology A-Level 1 of 30 © Boardworks Ltd 2008 ‘All truths are easy to understand once they are discovered; the point is to discover them’. Galileo Galilei 2 of 30 © Boardworks Ltd 2008 3 of 30 © Boardworks Ltd 2008 4 of 30 © Boardworks Ltd 2008 Structure of water Water (H2O) consists of two hydrogen atoms covalently bonded to one oxygen atom. Each hydrogen shares a pair of electrons with the oxygen. The oxygen has a greater affinity for electrons than the...
    1,068 Words | 11 Pages
  • Macromoleules of Life - 1662 Words
    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...
    1,662 Words | 6 Pages
  • Cytochemistry: Animal and Plant Tissues
    BIO 202 L Dr.Simon Cytochemistry: Animal and Plant Tissues Lab Performed: October 4th, 2011 Lab Submitted: November 16th, 2011 Day in and day out; Scientist worldwide work closely with various cells to study their functions, their components, and their complex structures. In Bio 202 one way we’ve learned to examine a cell is by taking advantage of the differences within the chemical reactivity of the molecules located within (Lab Manual, Chp. 5). Major biological molecules such as...
    928 Words | 3 Pages
  • Bio practical - 706 Words
    Title : Investigation of Action of Saliva and 3M Hydrochloric Acid in Two Carbohydrate Solutions Objective : To investigate the action of saliva and 3M hydrochloric acid in two carbohydrate solutions Results : Table 1: Observations Conclusions Solution A Benedict’s test : Initial blue solution changed to brick-red precipitate. Little amount of brick-red precipitate suspended in solution. The solution was translucent. Iodine test : Yellowish-brown remained the same. Abundant amount...
    706 Words | 4 Pages
  • Lab Report Info - 327 Words
    Lab Report Procedure 6.1: Perform Benedict’s test for reducing sugars. Introduction: Benedict’s tests allows for the detection of the presence of reducing sugars. All monosaccharides are reducing sugars since all of them have active carbonyl group. Some disaccharides that are exposed to a carbonyl group are also reducing sugars but less reactive than monosaccharides. By mixing the sugar solution with Benedict’s solution and heating them, a redox reaction will occur. The copper (II)...
    327 Words | 3 Pages
  • Vitamin c content in vegetables
    Tittle : Identification of Biochemicals in Their Pure Form Objective : To identify the component of the solution in its pure form with various food tests and state the justifications. Apparatus : Test-tube , test-tube holder , water bath 95’c , measuring cylinder , white tile , test-tube rack . Materials : Glucose, sucrose , fructose , hydrochloric acid , potassium hydroxide , albumin , cooked starch , corn oil , copper (ll) sulphate solution , ascorbic acid solution , DCPIP solution ,...
    365 Words | 3 Pages
  • How Sugar Affects the Body in Motion
    How Sugar Affects the Body in Motion By GRETCHEN REYNOLDS Gary John Norman/Getty Images Sugar is getting a bad reputation. A cover article in The New York Times Magazine several weeks ago persuasively reported that our national overindulgence in fructose and other sugars is driving the epidemics of obesity, diabetes and other illnesses. But that much-discussed article, by the writer Gary Taubes, focused on how sugars like fructose affect the body in general. It had little opportunity to...
    1,043 Words | 3 Pages
  • Sucrose Synthesis - 2241 Words
    Sucrose Synthesis by D. DeWitt, PhD v1.5 11/10/12 Introduction | Condensation Reaction | Plant Synthesis | A. Introduction Although it might seem straight forward, the synthesis of sucrose, either as a simple condensation reaction (a.k.a. dehydration synthesis), or what actually happens in plants is complicated. Before we explore sucrose's creation, let's take a look at its structure. In Figure 1, the space-filling model is pretty but rather useless at this point in our journey. We...
    2,241 Words | 8 Pages
  • Biological Molecules - 436 Words
    AS Biology, Biological Molecules Revision Notes Distinguish between monomers and polymers: Monomers- Identical small molecules. Polymers- Chainlike molecules formed from the linking together of many similar. Distinguish between monosaccharides, disaccharides, and polysaccharides: Monosaccharides- Simple sugars; sugar molecules may be enantiomers due due to the spatial arrangement of parts around asymmetric carbons; raw material for synthesis of other organic molecules....
    436 Words | 2 Pages
  • Honors Biology Laboratory Report: Yeast Laboratory Report
    Yeast Population Growth Laboratory Report Research Question: How do different treatments affect the fermentation and growth of yeast? Purpose: The purpose of conducting the two laboratory activities was to determine how yeast reacts to certain treatments. The effects of two simple sugars were tested, glucose and lactose, in relation to how the yeast ferment. Colony growth was also tested in relation to how yeast grows when plates are streaked with three different substances, glucose,...
    820 Words | 5 Pages
  • biology nutrients - 1888 Words
    What are the central ideas of Cells? • What are cells? – Cells are the smallest basic unit of living things. • What do they do? – Cells take in raw materials and making new substances. • Why do they do this? – In cells, organelles carry out activities to keep the organism alive. – E.g. synthesising proteins and fats, releasing energy from glucose. What are the central ideas of Movement of Substances? • What processes describe how substances move from one region to another? –...
    1,888 Words | 21 Pages
  • Carbohydrates Paper - 1690 Words
    The Importance of Carbohydrates SCI/241 5/23/2010 No-carb or low carb diet fads are among the most recent diet fads out there that the public has latched on to. The idea is that reducing or even limiting the amount of carbohydrates you consume on a daily basis will help you to drop pounds quickly. Advocates for low-carb or no-carb diets believe that consuming carbohydrates is bad because carbohydrates stay in your system and are not easily digested, so those carbs turn to fat in the body...
    1,690 Words | 5 Pages
  • Fvdfv - 498 Words
    Carbohydrates monosaccharide’s Glucose * Is the most common monosaccharide, and it plays a major role in nutrition because it is a readily available source of energy. Fructose * Is chemically similar to glucose but it is found only in fruits & honey. GA lactose * Does not occur naturally in foods, but it forms as a result of the digestion of the disaccharide. Disaccharides Are formed through the combination of any 2 monosaccharides. * Glucose +fructosesucrose *...
    498 Words | 2 Pages
  • Lab 3 Sugars and Fats
    Lab 3: Sugars and Fats Purpose The Purpose of Lab 2: Sugars and Fats is to introduce me, the student, to testing several of the large organic macromolecules that we have studied in this module. We will test to see if they have a positive or negative result for either protein or starch. The Lab will test diwater (as the negative control), 1% starch solution, 1% sucrose solution, 20 % sucrose solution, and onion juice for sugar. We will also test diwater (again, as the negative control), 1%...
    562 Words | 3 Pages
  • Yeast Respiration Lab - 1373 Words
    “Investigate the factors affecting the rate of yeast respiration” Lab Report Introduction The aim of this experiment was to investigate the effect of different amounts of a substrate on the respiration rate of yeast and to compare this to the effect of different amounts of glucose on the rate of yeast respiration. The substrate which I chose to further investigate was fructose. Fructose is a fruit sugar which is one of the three, along with glucose and galactose, dietary monosaccharides...
    1,373 Words | 6 Pages
  • Biology Membrane Lab - 535 Words
    Introduction: In this lab i used glucose and starch to show if the cell membrane is permeable, impermeable, or selectively permeable to these substances. Dialysis tubing is a plastic like substance that has small pores in it. These pores allow certain chemicals to flow into and out of the cells. The size of the molecule determines what goes through the tubing. On of the materials that we will be using is glucose. glucose is a simple sugar that easily dissolves in water. To test for the presence...
    535 Words | 2 Pages
  • Lactase Enzyme Lab - 810 Words
    Type III Writing Assignment: Written in lab notebook 1. Results (recreate in notebook) 15 points/ _____ 2. Conclusion 20 points/ _____ 3. Questions 15 points/ _____ Lactase enzyme lab OBJECTIVES: 1. Understand how biological molecules are essential to the survival of living organisms * * 2. Compare the structures and functions of the major biological molecules(carbohydrates, proteins, lipids, and nucleic acids) as related to the...
    810 Words | 4 Pages
  • Sugar Respiration in Yeast - 844 Words
    Lab 04: Sugar Respiration in Yeast Sugars are vital to all living organisms. The eukaryotic fungi, yeast, have the ability to use some, but not all sugars as a food source by metabolizing sugar in two ways, aerobically, with the aid of oxygen, or anaerobically, without oxygen. The decomposition reaction that takes place when yeast breaks down the hydrocarbon molecules is called cell respiration. As the aerobic respiration breaks down glucose to form viable ATP, oxygen gas is consumed and...
    844 Words | 3 Pages
  • Effect of the Nature of Different Substrates on the Rate of Cellular Respiration of Yeast
    Cellular respiration is defined as an enzyme mediated process in which organic compounds such as glucose is broken down into simpler products with the release of energy (Duka, Diaz and Villa, 2009). It is a series of metabolic processes and oxidation-reduction reactions. Oxidation of substrates, such as glucose, is a fundamental part of cellular respiration (Mader, 2009). As a catabolic process, it may or may not require the presence of oxygen. The process that requires oxygen is called aerobic...
    842 Words | 3 Pages
  • Glycolysis Regulation - 346 Words
    Glycolysis Regulation Task 3 (D4) Glycolysis is the breakdown of glucose into a compound called pyruvate. A net of two ATPs are produced as the process uses two ATPs and produces four. Glycolysis consists of ten chemical reactions; each reaction is catalysed using a different enzyme. Oxygen is not required during glycolysis so it is considered anaerobic respiration. Glycolysis must be regulated so that energy is produce only when required. During glycolysis there are three enzymes that...
    346 Words | 1 Page
  • A comparison of the respiration of yeast in different sugar substrates.
    Biology Fermentation Practical "A comparison of the respiration of yeast in different sugar substrates" Aim: The aim was to compare the respiration of yeast in different substrates of sugars, i.e. between a monosaccharide (glucose) and a disaccharide (maltose) Theory: There are three types of Carbohydrates, monosaccharides, disaccharides, and polysaccharides. The two, which I will be looking at, are, monosaccharide (glucose) and the disaccharide (maltose) Classification and major properties...
    4,504 Words | 18 Pages
  • bio 111 lab report 2
    Matthew McConnell Bio 111 Lab Report #2 Testing Solutions for the Presence of Organic Molecules In this lab, several solutions were tested for the presence of organic molecules; Carbohydrates, proteins, and lipids. The lab confirmed the presence of starch in an iodine solution, sugars in water via Benedict's Solution, and Biuret solution to confirm presence of proteins. The data obtained showed that there were organic molecules present in the solutions tested. Thus, in the course of doing the...
    569 Words | 2 Pages
  • macromolecules of life - 2167 Words
    MACROMOLECULES OF LIFE DEFINITIONS INORGANIC CHEMISTRY A branch of chemistry which studies the structures, synthesis and reactions of compounds other than HYPERLINK http//searchbox.hyperdictionary.com/dictionary/hydrocarbons t _blank hydrocarbons and their derivatives ORGANIC CHEMISTRY A branch of chemistry that deals specifically with the structures, synthesis and reactions of carbon-containing compounds. CHEMICAL BONDS When two or more atoms are bonded together to form new and more complex...
    2,167 Words | 6 Pages
  • Human Physiology Essay #2
    Jay Scarlett Period 2 Human Physiology August 23, 2013 Carbohydrates are sugars that provide the body with energy, sugars such as glycogen, starches, and cellulose. There are two types of carbohydrates, simple and complex. Simple sugars are monosaccharide and disaccharides. Complex sugars are polysaccharides. Monosaccharides are the building blocks to carbohydrates. They serve as a chemical energy for generating ATP that fuels metabolic reactions. Leading to a different molecule, when two...
    282 Words | 1 Page
  • Testing for Macromolecules - 466 Words
    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...
    466 Words | 2 Pages
  • Identification of Macromolecules- Lab Report
    Identification of Macromolecules Introduction The most common macromolecules found in living organisms are lipids, carbohydrates, proteins and nucleic acids. Briefly, the meaning of macromolecules is that they normally contain two or more molecules in them and their main functions are to store energy, information and much more. Most foods are known to be combinations of macromolecules. While some of these compounds can be detected by taste tests, many cannot. Scientists then use...
    826 Words | 3 Pages
  • Lab Report - 1398 Words
    Roy Levin Bio 11 Lab Dr.Izquierdo Analysis of Macromolecules in Tissue Homogenates of Bos taurusMaterials and Methods The homogenates provided were made by homogenizing tissues in a sucrose phosphate buffer in a 1:20 ratio. The protein concentration in bovine cells was measured by diluting the homogenate with a 1:5 ratio; 50 microliters of homogenate and 200 microliters of water. Then 5 known protein concentration samples which were 0.4, 0.8, 1.2, 1.6, 2.0 mg/ml of bovine serum were...
    1,398 Words | 6 Pages
  • biochemical lab - 692 Words
    Biology Lab –Biochemical Tests Aim: The aim of this experiment is to find out whether different food samples (potatoes, apples, eggs, peanuts) contain nutrients using different reagents. Hypothesis: Reducing sugar: Among all the food samples, I think that apples will have the highest amount of reducing sugar. This is because apple, a fruit contains a monosaccharide called fructose, while potato contains mostly starch, a complex sugar therefore will not have any reducing sugar...
    692 Words | 4 Pages
  • Organic Compound - 909 Words
    Maria Charles Bio Lab 110 June 17, 2013 Lab Report: Organic Compound Organic compound contains carbon, and is used to be thought that only living things could synthesize the complicated carbon compounds found in cells. It can be created by non- organic means. The organic compounds give protoplasm its characteristic nature; these compounds fall into four categories; protein (enzyme, catalyzes reactions, and structure), lipids (fat in cell membrane, storage of energy insulation), and...
    909 Words | 3 Pages
  • Biologically Important Molecules - 1167 Words
    Biologically Important Molecules Carbohydrates, Proteins Lipids And Nucleic Acids Professor Anthony Depass Biology 1 9/25/14 Introduction: By completing lab exercise 6 : Biologically Important Molecules, we are able to perform tests such as the Benedicts Test for Reducing Sugars, Iodine Test, Biuret Test, Sudan IV Test, and lastly the Grease-Spot Test that detect the presence of biologically important carbohydrates, protein lipids and nucleic acids. Most known compounds in living...
    1,167 Words | 6 Pages
  • BIOLOGICALLY IMPORTANT MOLECULES - 1405 Words
    ! EXERCISE 6! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! ! BIOLOGICALLY IMPORTANT MOLECULES! REPORT ! ! ! INTRODUCTION ! In this experiment, we will learn about biological important molecules by performing tests to detect the presence of carbohydrates, proteins, lipids, and nucleic acids. Also, we will use biochemical tests to identify the unknown compound that react in the following biochemical tests: Benedict’s test, Iodine test, Sudan IV test,...
    1,405 Words | 16 Pages
  • Introductory to Surcose - 617 Words
    Sucrose is a disaccharide formed from D-glucose and D-fructose. The glycosidic linkage is between C1 of glucose and the C2 of fructose. 1H NMR of Sucrose: Mass Spectrum of Sucrose: 13C NMR spectra of sucrose: 3. Why is it difficult to isolate sugars? For simple sugars, they are small molecules and they behave similar properties that make them hard to separate. Besides, sugars are most electrically neutral. The separation of electrically neutral sugars is a relatively difficult...
    617 Words | 3 Pages
  • The Effect of substrate on the Rate of Respiration on Yeast
     The Effect of substrate on the Rate of Respiration on Yeast1 Justine Maturan Group 4 Sec. Y – 5L November 18, 2014 ________________________________________________________________ 1A scientific paper submitted in partial fulfilment of the requirements in General Biology I Laboratory under Prof. Susan Sedano, 1st semester 2014-2015 ABSTRACT In order to determine the effect of the substrate on the rate of respiration of yeast, Durham test tube method was used in the first...
    2,137 Words | 7 Pages
  • 1308 Biology Review - 408 Words
    Biology 1308 Review Quiz 3 Macromolecules 1. Class of molecules to which DNA belongs NUCLEOTIDE 2. Glucose, fructose and galactose are MONOSACCHARIDE (SIMPLE SUGAR) 3. The compounds above in #2 have the same chemical formula but differ in ARRANGEMENT OF THE ATOMS. IDENTICAL MOLECULAR FORMULA BUT DIFFERENT STRUCTURAL FORMULA. 4. Starch and cellulose are examples of SUGARS 5. Sucrose, maltose, and lactose are of DISACCHARIDES (DOUBLE-SUGARS) 6. Chemical reactions that link two or...
    408 Words | 2 Pages
  • The Process of Fermentation Through Different Kinds of Sugars
    THE PROCESS OF FERMENTATION THROUGH DIFFERENT KINDS OF SUGARS In order to produce ethyl alcohol fermentation, we had to determine what sugars used, such as glucose (a single sugar) sucrose (table sugar) and lactose (milk sugar) will react with yeast to produce ethyl alcohol fermentation. My hypothesis is that the sugar lactose would produce the highest amount of bubbles and ferment. INTRODUCTION: The significance of fermentation is a lengthy process that has been practiced by humankind...
    866 Words | 3 Pages
  • Spit Lab - 2637 Words
     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, for the presence or absence of a reducing sugar with the saliva in it. Adding on, another part of the objective is to determine the effect of amylase on starch. For the Chemical Aspects lab, the...
    2,637 Words | 11 Pages
  • Biological Macromolecules - 848 Words
    Biological Macromolecules Biology 124L Sec. 142 Introduction In the experiment the class used five different macromolecules such as instant soup, flour, fruit juice, milk and dessert gelatin to test the physical and chemical properties when mixed with positive and negative controls. In groups, we used four experiments consisting of Starch, Benedict’s, Sudan IV, and the Buiret test. As a class we came up...
    848 Words | 4 Pages
  • Lab Abstract 1 - 266 Words
    Zoe Goodman Lab Abstract 1 The purpose of this experiment is to learn how to test for common macromolecules and identify macromolecules in substances. The four tests that were used were: Sudan IV test, Iodine test, Biuret test, and Benedict’s test. The Sudan IV test identifies lipids. If the test is positive it will have a deep pink layer. Out of the four tested substances, only vegetable oil tested positive. The Iodine test determines if starch is present. In this test, potassium iodine...
    266 Words | 1 Page
  • Experiment 4 Lab Review
    Experiment #4 (10/31/14) Lab Review Objective To introduce the basic molecules of life and to test for their presence in different substances. Introduction Macromolecules are in all forms of life. These organic compounds are carbohydrates, lipids, proteins, and nucleic acids. These are monomers and they link together into long chains that form polymers. Different reagents can be used to find the presence of these macromolecules. Proteins are made of carbon, hydrogen, oxygen, nitrogen, and...
    637 Words | 3 Pages
  • Dialysis of Starch - 693 Words
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  • Dangers of Refined Sugar - 794 Words
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  • Ib Bio Syllabus 1.2
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  • Biology Lab Report: Testing for Macromolecules
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  • Identification of Food Constituents in Milk
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  • Yeast and Sugar - the Chemistry Must Be Right
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  • Nutrition - 482 Words
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  • Does the Respiration Rate of Yeast Vary with Different Sugars
    The aim of our investigation is to find out whether the use of different sugar isomers with yeast, will affect the rate at which the yeast respires at. The sugars to be tested are fructose, galactose, glucose, lactose and sucrose. Their effects on the respiration rate of yeast to be observed through the measurement (cm3) of the displaced water, which will tell us how much CO2 has been respired over 2 minutes. To compare the effects an average will be calculated for each and a result will be...
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