Glucose Essays & Research Papers

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....

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...

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....

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...

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...

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...

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...

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...

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...

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 |...

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 |...

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...

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...

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...

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...

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...

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....

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...

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...

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...

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...

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...

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...

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....

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...

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...

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...

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)...

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? –...

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 ,...

“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...

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...

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,...

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 *...

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%...

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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

! 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,...

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...

 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...

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...

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...

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...

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...

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...

Experiment 2: Food Tests Objective * To study the presence of reducing sugars. * To study the presence of protein. Introduction In this experiment, glucose, maltose, lactose and sucrose are used for testing reducing and non-reducing sugars. Glucose is monosaccharide while maltose, lactose and sucrose are disaccharides of carbohydrates. Monosaccharaides are the monomers which make up all other carbohydrates and cannot be broken into smaller molecules by hydrolysis. Disaccharides...

1. Cellulose, starch, and glycogen are very similar, yet very different. Describe the process by which each of these molecules is formed. Why does the subtle difference in how the simple sugar monomers are bonded in starch and cellulose affect how the two molecules are used? Cellulose is built from glucose molecules bonded covalently together through a process known as hydrolysis. Hydrolysis is a chemical process in which a molecule of water is added to a substance. Each alternating glucose...

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...

Focused Question: How can one determine the presence of glucose, starch, lipid, and protein in various samples? Pre-lab Questions: • Glucose is a monosaccharide. What does this mean? A monosaccaride is a carbohydrate molecule with three to seven carbon atoms with the corresponding number of hydrogen and oxygen atoms. • Proteins are made of amino acids. What atom is present in an amino acid that is not present in a sugar molecule? One nitrogen atom is present per molecule in an amino...

 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...

INTRODUCTION Macromolecules are highly important organized organic molecules that are found within living cells. These biological molecules help the body execute precise important tasks. There are four types of macromolecules: carbohydrates, lipids, proteins and nucleic acids. (Karp, 2010) This specific experiment showcased the identification of different macromolecules using three different testing methods. Carbohydrates, sugar molecules, are known as “fast fuel” in the body, and they...

TITLE: COMPARISION OF CHEMICAL COMPOSITION OF VARIOUS FOOD STUFF Introduction Starch has been used widely for a number of different applications. Starch is a mixture of amylose and amylopectin. Starch is also a typical form of carbohydrate that is used for energy storage in the plant cell. Plant cell stores starch in a specialized organelles, amyloplast. Potato cells are very rich in amyloplast. The purpose of this experiment is to determine the presence of starch in potato cell. Starch...

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...

Carbohydrate Lab Report Introduction Qualitative identification of a substance is of significant importance in chemistry. Physical constants such as melting points have traditionally been used by organic chemistry for identification of unknown compounds. As for inorganic substances, the precipitation of a solid, results of a flame test, or the formation of a colored substance could all be keys to identifying a sample. Chromatography and spectra are amongst the newer...

Dialysis of starch, glucose and sucrose Introduction: Research question: Does the dialysis tube only allow certain substances to pass through the pores because of their size? Dependent and Independent variables: Independent variables: The temperature of the classroom The size of the molecules The size of the pores in the tube The concentration of the indicators Dependent variables: The substance will either pass the pores of the tube or not The result will vary in darkness (color)...

Sugar By Mackenzie Bolland 11P Miss White Sugar, a fatty tastes substance that is now in all are foods at a high level. We know that when we eat it, its makes are foods taste better, but also at the same time. But what do we really know about it. What do we really know about what it does to our body, and our lifestyle? Many people argue that’s with the increase sugar intake we are now taking, is leading the increase in lifestyle disease’s epidemic. I believe this statement is true, with...

THE CHEMICAL CONSTITUENTS OF LIVING MATTER Relevant IB topic: T3 Time: 2 hours BACKGROUND The principal chemical constituents of living matter are: water, mineral salts, organic compounds such as carbohydrates, proteins, lipids, nucleic acids. In this exercise we shall concentrate on carbohydrates, lipids, proteins, and we shall estimate the concentration of Vitamin C, an organic compound, in a solution, by the...

The importance of carbohydrates in living organisms Carbohydrates contain carbon, hydrogen and oxygen in the ratio of 1.2.1.. There are many different types of carbohydrate, all of which are useful to living organisms. The most important carbohydrate is probable glucose. Glucose is a monosaccharide and is the monomer unit which makes up more complex polysaccharides. Two glucose molecules can be joined in a condensation reaction, whereby water is removed, for example to produce maltose, a...

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...

We live in a toxic environment. Much of what we consume is simply not good for our bodies-it builds up and eventually damages our health. Antioxidant vitamins-vitamins C and E, and beta carotene-may be what we need to "clean up" our systems. Excess sugar in the bloodstream can have very serious side effects. The extra sugar impedes blood flow, causing wounds to heal more slowly and infections to become more virulent. Just how this excess sugar causes damage remains a topic of debate. One...

Title : Investigation of Action of Saliva and 3M HCl in Two Carbohydrates Solutions. Objective : To investigate the action of saliva and 3M hydrochloric acid in two carbohydrate solution. Result : Table 1 : The presence of starch and reducing sugar in the solution Observation Conclusion Solution A Benedict’s test : The transparent blue solution turns into opaque brick-red precipitate Iodine’s test : The clear colourless solution turns into transparent...

Daniel Bergey Lab 2: Proteins and Starches Purpose The purpose of lab 2 and both tests with proteins and starches is to determine which substance contains either protein or starch. Hypothesis Proteins: I predict that any substance I test that derives from a living organism is will test positive proteins. Any substance that isn’t from a living organism more than likely will test negative for proteins. Starches: I predict that any substance that contains any level of glucose will test...

QUALITATIVE TESTS OF CARBOHYDRATES Final Lab Report Submitted by Brittany Fitzgerald 545301 Prepared for Nancy Cook Chemistry 3501 Monday November 26, 2012 RESULTS PART A: As a result of the Benedict’s test on various sugar solutions, it was found that galactose, mannose, arabinose, ribose, lactose, fructose, maltose, and cellobiose tested positively and therefore are considered reducing sugars. Glucose, starch, sucrose, and methyl-D-glucopyranoside on the other hand...

 Disaccharides Sucrose A crystalline disaccharide of fructose and glucose, C12H22O11, found in many plants but extracted as ordinary sugar mainly from sugarcane and sugar beets, widely used as a sweetener or preservative and in the manufacture of plastics and soaps, also called saccharose. Sucrose is one of the main products of photosynthesis and the most common transport sugar in plants. It is also a no reducing disaccharide, and is synthesized in the cytosol via the phosphorylated...

Carbon, Hydrogen and Oxygen. These three simple elements make up one of the most useful substances for many living organisms: Carbohydrates. Carbohydrates are used for numerous processes in organisms from acting in important roles of cellular recognition in the human body to storing chemical energy in plants in the form or starch. The roles of carbohydrates in the human body alone are numerous; providing energy for working muscles, providing energy for the regulation of blood glucose,...

Examining the Effects of Mass and Type Of Sugar on Yeast Fermentation Lab Purpose: To measure and analyze the effects of various types and masses of sugar in an ethanol fermentation reaction with yeast. Introduction: Ethanol fermentation is a system in which hydrogen ions from NADH + H+ are broken down in order to release the trapped energy and regenerate NAD+. In the absence of a mitochondria or oxygen ethanol is formed, which is typically found in bacteria and some yeast....

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Carbohydrates Presentation The purpose of this presentation is to describe carbohydrates and how they benefit the human body. We will examine the basic functions of sugars and starches, and healthy sources from which to obtain carbohydrates. We will also discuss diabetes, how it affects the body, and methods of managing the disorder. A carbohydrate is a neutral compound of carbon, hydrogen, and oxygen that supply energy to the human body in the form of glucose. They are one of the main types...

Athletes with Diabetes Athletes with Diabetes have to cope with it in different ways then someone that is not an athlete with Diabetes. Athletes have to have certain amount of sugars and different foods to maintain a healthy body. I’m going to tell you how athletes deal with diabetes, and how athletes manage their sugar level. I’m also going to tell you some risks of athletes with Diabetes. Athletes that have Diabetes have to deal with it in certain ways. With proper management,...

BIOL 1362-CARBOHYDRATE TUTORIAL 1. List the names and give the Fisher projection formulae and functions of three (3) biologically important monosaccharides in the cell. 2. In each of the above structures, indicate the chiral centres using an *. 3. Choose two (2) of the above and carry out cyclisation to achieve furanose and pyranose ring structures. 4. In the ring structures drawn in three (3), indicate whether the structures are α or β. 5. How many chiral centres are present in D-fructose?...

A carbohydrate is an organic compound made up of only carbon, hydrogen and oxygen. The monomers for carbohydrates are alpha glucose and beta glucose, these monomers are joined together by glycosidic bonds. Carbohydrates are known as the term saccharides, they are split into chemical groups: monosaccharides, disaccharides and polysaccharides. Monosaccharides are the smallest, examples in this group are: fructose glucose and galactose. To form disaccharides (examples such as: sucrose, lactose...

Purpose: To determine which chemical indicators that will indicate the presence of glucose, starch, lipid, and protein in various samples. Methods and Materials: For materials, please refer to p.18 in Biology 11 (replace Sudan IV with filter paper) For procedures, please refer to p.18-19 (except Part C) For Part C in Inv. 1A, please read the following procedures: 1.Label sample 1-6 on the filter paper 2.Add one drop of each sample corresponding to their number indicated on the filter...

Chemical Aspects of Life and Spit Lab Formal Report 1. Abstract 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). The objective of the Starch test was to test for starch in substances by using Iodine. The iodine will cause a substance to turn to a dark blue color if it is positive for starch. The...

3.2 syllbus 3.2.1 ~Organic compounds contain carbon and usually hydrogen. ~Inorganic compounds do not contain carbon and hydrogen. 3.2.2 ~ Glucose Fatty Acid 3.2.3 Monosaccharide ~-the basic unit of carbohydrates -the simplest form of sugar -Glucose, Galactose, Fructose ~disaccharides have the chemical formula C12H22O11, consist of two monosaccharides which are joined by the process of dehydration synthesis (during while a molecule of water is formed) -Maltose, Lactose,...

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 hydroxide solution and copper sulphate solution instead. Add 1 cm3 of sodium hydroxide solution (40% or bench solution) and 1% copper (II) sulphate solution dropwise – drop by drop -...

Carbohydrates Glucose simplest sugar found primary in plan based foods Monst desirable form of energy Body always wants to use most absorbable easiest to use Eventually some systemsbreakdown Veggies are much easier to digest If body consumes 500g of carbs burning same as consume dont gain weight Body will use some but leftivers become fat Have fat storage Body can only store so much....via gycogen Have to eat healthy carbohydrates Photosynthesis Plants / leaves...

1. (TCO 2) In the body, the major storage sites for glycogen are the: (Points : 1) | Muscles and liver. kidney and muscles. liver and kidney. liver and pancreas. | 2. (TCO 2) Which of the following enzymes is found in the mouth? (Points : 1) | Lactase Maltase Pancreatic amylase Salivary amylase | 3. (TCO 2) After a meal, which hormone is responsible for moving glucose into the body's cells? (Points : 1) | Glucagon Estrogen CCK Insulin | 4. (TCO 1) What is the...

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...

Yvan Mamboukuate 10/09/2013 BIO 101 Lab Report Biological Molecules Introduction: In this experiment, simple chemical tests will be performed to identify the presence of various types of biological molecules. These tests take advantage of the fact that different types of molecules have different functional groups and, therefor, different chemical properties. Thus, they will react to test reagents (also called indicators) differently. Materials: Biuret, Sudan III, Iodine, Benedict,...

ZOOL 1 Lecture 3 1 2 ¡  ¡  ¡  ¡  Chemical substances that cannot be broken down to simpler forms by ordinary chemical reactions Atom Atomic number Atomic mass Compound Molecule Macromolecule 3 ¡  ¡  ¡  ELEMENT Oxygen Carbon Hydrogen Nitrogen Calcium Phosphorus Potassium ...

Materials • Samples of different types of milk • Benedict’s Reagent • Biuret Reagent • Sudan III • Water bath • Pipettes/syringes • Test tubes • Microscopic slides and cover slips • Microscope Method (testing for reducing sugars) 1. Add 3cm³ of whole milk, by using a pipette or syringe to the test tube. 2. Add 5cm³ of Benedict’s reagent and place it in the boiling water bath for 8 minutes. Do the same for semi-skimmed milk and skimmed milk. 3. Once all 3 of the test tubes...

Experiment No. 7 HYDROLYSIS AND ANALYSIS OF CARBOHYDRATES Methodology Materials: |1% solutions: | conc. H2SO4 | |glucose, fructose, maltose, sucrose, lactose, |Molisch reagent | |agar-agar, gum arabic,glycogen, cotton, |I2 in KI solution...

Yeast and Sugar - The Chemistry must be right Jansen, C. Gymnasium Felisenum, The Netherlands 14-04-2010 Summary Yeast can metabolize sugar in two ways, aerobically, with the aid of oxygen, or anaerobically, without oxygen. In this experiment yeast ferment sugars anaerobically. When yeast ferments the sugars anaerobically, however, CO2 production will cause a change in the weight of the sugar/yeast-solution. This raises a further question: What is the effect of different kinds of...

Q: Sucrose is a disaccharide that undergoes hydrolysis to form two monosaccharaides, glucose and fructose, when it is consumed. Why then should there be any significant difference between consuming sucrose and HFCS-55? A: I believe that when the bees consume HFCS-55 that their body breaks it down and poisons the bees’ body. Q: Can HFCS-55 be considered a natural substance? Explain your reasoning, specifically listing the criteria by which you believe a substance may be...

Name: Marcus Gonzales Date: Wednesday 12th September 2012 Form: L62 Subject: Biology Teacher: Ms. Hutton Lab #: 1 Title: Food Tests Aim: To test an unknown substance for various food substances. Apparatus/Materials: * Unknown Solution X * NaOH * Iodine * Ethanol * Copper Sulphate * Benedict’s Solution * HCl * Cold Water * Syringe * Beakers * Bunsen burner * Tripod stand * Test tubes * Dropper Introduction: This Lab...

Abstract The experiment aims to observe if simpler substrates makes the rate of cellular respiration faster. Using yeast, smith fermentation tubes and different substrates namely, starch, lactose, sucrose, glucose and fructose, which are from different kinds of carbohydrates, ranging from the simplest sugars glucose and fructose to the polysaccharide starch and water as the control, the hypothesis was tested. With the span of thirty minutes with five-minute intervals, the height of carbon...

 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...

Diffusion: Temperature's Effect on Diffusion: We added potassium to a two tubes with different temperatures: Temperature Result Room Temperature Slow change in Color Boiled water Fast change in Color Conclusion : The increase in temperature assists in increasing the speed of diffusion. Diffusion of Glucose and Starch: A. Color Change: State/Results In the Tube In the Beaker Color Glucose Color Glucose Initial State (Before placing tube into graduated cylinder) Transparent...