Biological Macromolecules Lab Cells‚ the fundamental units of life‚ are composed of various combinations of organic macromolecules: carbohydrates‚ lipids‚ proteins‚ and nucleic acids. This lab exercise is designed to show you the qualitative tests commonly used to detect their presence. Objectives Test for the presence of monosaccharides by using the Benedict’s test Test for the presence of starch‚ a polysaccharide‚ by using the Lugol’s iodine test Test for the presence of lipids by using the
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Chapter 5: The Structure & Function of Macromolecules Reading Guide Part 1: Carbohydrates: Read pages 68-74 and complete the following questions. 1. Define the following: a. monomer-repeating units that serve as building blocks of polymers b. polymer-long molecule consisting of many similar building blocks linked by covalent bonds c. dehydration synthesis or condensation reaction-monomers are connected by a reaction in which two molecules are covalently bonded‚with loss of water
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Macromolecules are molecules that are large and essential for life. They consist of carbohydrates‚ nucleic acids‚ proteins‚ and lipids. Carbohydrates are molecules that are composed of monosaccharaides. Carbohydrates include cellulose‚ starches‚ and sugars. Two tests may be used to determine the presence of the carbohydrates. Those tests are the Benedict’s test and Lugol’s Iodine Test. Proteins are another category of macromolecules. The protein is a type of macromolecule that carry out many processes
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2007 AP Question 1 A) Three macromolecules that are very important components of the Cell Membrane of Eukaryotic organisms include molecules such as phospholipids‚ cholesterol and Glycoproteins all of which contribute to the continued functioning of the cell membrane. Phospholipids Structure: form the majority of the cell membrane‚ two layers of phospholipids combine to form the phospholipid bilayer‚ the phospholipids are made of two fatty acid tails attached to a phosphate head‚ the phosphate
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Macromolecule is a very large molecule which can get collected in the kidneys. Generally‚ the molecular weight of the macromolecular vehicle is bigger than that of the prodrugs and so this kind of system can achieve the objective. Pro-drugs have the capability to select the goal in the kidney because it can release the active drug by the action of renal enzymes
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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 certain
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Summary for Quiz Monday‚ May 30‚ 2005 12:13 AM Title Identification of Some Macromolecules Gist of Experiment • Use different tests to check for the existence of macromolecules in various substances o Iodine test checks for starch and/or glycogen o Benedict’s test checks for reducing sugars o Biuret test checks for protein Notes on Underlying Theory Introduction • The most abundant elements in living material are: o Carbon
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every mixture there was 5 ml of (stock solution/the three unknowns/our constant) separately mixed with 1 ml of each testing reagents. After running the experiments we can conclude that each of the three supplements do in fact contain some amounts of protein. Supplement number one tested positive for starch‚ protein‚ and sugars. This specific supplement contains the highest level of fillers as it presents us with sugar and starch
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Identification of Macromolecules Introduction The purpose of this lab is to test for the presence of macromolecules in various foods. Tests are performed to describe the basic structure of proteins‚ lipids‚ glycerides‚ and carbohydrates. We are to recognize the positives and negatives in these macromolecules. Also we are to identify the roles that proteins‚ lipids‚ minerals‚ vitamins‚ and carbohydrates play in the body’s construction and metabolism. Procedure / Results 5.1 Carbohydrate
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Identification: * Testing for Macromolecules * September 20‚ 2012 – September 25‚ 2012 * SBI4U1-01 * Rebekah Alto‚ Chayene Banta‚ Taylor Denton‚ Sarosh‚ Brianna Madar * Mrs. Kolobaric Purpose: To use a set of standardized procedures to test for simple sugars and starch‚ proteins‚ and fats. Hypotheses: A.) B.) C.) Equipment: -Safety goggles -Lab apron -400 mL beaker -Utility stand with ring clamp -Hot plate
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