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 called macromolecules
Premium Carbohydrate Glucose Starch
Summary of Carbohydrates: Monosaccharides‚ Disaccharides‚ Polysaccharides Carbohydrates are molecules that are synthesized from carbon‚ oxygen‚ and hydrogen atoms. Some types of carbohydrates consist of a single unit consisting of a few atoms‚ while other carbohydrates consists of thousands of units linked together through chemical bonds. Glucose‚ maltose‚ and glycogen are three carbohydrates that are similar‚ but structurally different. Carbohydrates have the general molecular formula CH2O. Starch
Premium Glucose Carbohydrate Disaccharide
Abstract Carbohydrates are important in metabolic processes for everyday physical and chemical actions. The carbohydrate‚ glucose‚ is a key component in generating adenosine triphosphate‚ also known as ATP. In order to analyze unknown glucose levels‚ a DNS assay was performed. By using 2-hydroxy-3‚5-dinitrobenzoic acid to oxidize the aldehyde group on the carbohydrate‚ the reducing end of glucose increases in absorbance of 540 nm. Using a UV spectrophotometer‚ the concentration was calculated
Premium Fructose Sucrose Glucose
#) Identifying Carbohydrates (First inital and last name of lab partner) Purpose The purpose of this lab is to learn how to identify different forms of carbohydrates by conducting the Benedict and Iodine test. Theory The theory for this concept is that if in the benedicts test the carbohydrate reacts‚ it is a monosaccharide. If it reacts in the Iodine test it is a polysaccharide. If no reaction occurs in either test the carbohydrate is a disaccharide. Data Type of carbohydrate | Benedicts Test
Premium Glucose Sucrose Carbohydrate
Examination of Proteus Vulgaris by Carbohydrate Fermentation Tests Abstract: Some bacteria ferment certain carbohydrates‚ while producing acidic or gaseous products; this information can be utilized in order to identify bacteria (Morello and Granato‚ 2003). In order to test for carbohydrate fermentation‚ tubed broths‚ containing a Durham tube for trapping any gas formed when the broth is incubated‚ are utilized (Morello and Granato‚ 2003). After incubation‚ a color change indicates that
Free Disaccharide Glucose Sucrose
which usually results in folding of the protein into a specific three-dimensional structure that determines its activity. What is starch?2 Starch is a carbohydrate consisting of a large number of glucose units joined by glycosidic bonds. This polysaccharide is produced by most green plants as an energy store. It is the most common carbohydrate in human diets and is contained in large amounts in such staple foods as potatoes‚ wheat‚ maize (corn)‚ rice‚ and cassava. Its presence or absence in samples
Premium Glucose Disaccharide Amino acid
what are carbohydrates and what is the function of carbohydrates in the body? And secondly‚ what is meant by a low carb diabetic diet? The function of carbohydrates is to provide your body with it’s main source of energy. Your body will either use that energy straight away or store it for later. Carbohydrates are recognised as one of the most important influences on blood sugar levels. Many people with diabetes have found that eating a low carb diabetic diet helps them to control
Premium Nutrition Obesity Carbohydrate
Identification of Unknown Carbohydrates using various biochemical tests Date of experiment: 11/10/2012 Name of Student: Vicki Marshall Introduction A series of biochemical tests was carried out to identify unknown carbohydrates. There were six carbohydrates that needed to be identified; they have been randomly labelled A-F. The carbohydrates are glucose‚ fructose‚ maltose‚ lactose‚ sucrose and starch. There was six tests that were carried out to help identify them‚ these were: Iodine Test
Premium Disaccharide Sucrose Glucose
Lab 7—Determination of Total Carbohydrates Using the Phenol-Sulfuric Acid Method This lab introduced the students to analyzing carbohydrate content using a spectrophotometer and phenol-sulfuric acid methods. Virginia Smith 983976633 Lab Partner: Jeff Martz Due Date: 3-22-11 Introduction The objective of this lab was to have students use a spectrophotometer to analyze the carbohydrate content in the sample. Phenol-sulfuric acid methods
Premium Starch Glucose Disaccharide
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 yellowish-brown
Free Enzyme Starch Glucose