sugar units‚ location of C=O and stereochemistry. Classifications of carbohydrate are monosaccharides‚ disaccharides‚ oligosaccharides‚ and polysaccharides. Monosaccharide is the smallest possible sugar unit. Examples include glucose‚ galactose or fructose. When we talk about blood sugar we are referring to glucose in the blood; glucose is a major source of energy for a cell. In human nutrition‚ galactose can be found most readily in milk and dairy
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Viviana Veber Bio 1510 Sec 21 Carbohydrates Introduction: The objective of this experiment was to identify the reaction of carbohydrates in Benedict’s test‚ Barfoed’s test and Iodine test. Carbohydrates are essential to living organisms‚ and the principal role of carbohydrates is the production of energy. Carbohydrates are groups of sugars that contain carbon‚ oxygen‚ and hydrogen in a 1:2:1 ratio. Three main units of carbohydrates are monosaccharides‚ disaccharides‚ and polysaccharides
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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 ‚ Millon’s reagent ‚ Sudan lll ‚ tap water‚ ethanol ‚ iodine solution ‚ Benedict’s solution. Observation : Part One : Identification of Carbohydrates Reducing sugar Test Observation Fructose Colourless fructose solution turned to reddish brown solution. Glutose Colourless
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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 and
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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. Yeast
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cells carry out the process of cell respiration in order to meet their energy needs. It is advantageous for cells to have the ability to metabolize different substrates. In this experiment‚ we investigated each sugar’s (glucose‚ lactose‚ sucrose‚ fructose‚ and lactose/lactaid) cell respiration rate. When referring to my group’s graph and data‚ glucose ended up with the highest respiration rate (1‚177.2 ppm/min)‚ but sucrose did reach the highest ppm at 300 seconds with 6‚870 ppm. This outcome makes
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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 drawn
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Abstract Lactose Intolerance is a condition that effects people who do not produce enough lactase to digest lactose. There are three different types of Lactose Intolerance that are caused by the small intestine and the amount of lactase produced. Lactose Intolerance effects those who have the condition by causing pain and making them uncomfortable ("Lactose intolerance"). Lactose Intolerance Introduction Lactose Intolerance is a condition that effects one out of every ten Americans
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Chemistry Project CERTIFICATETHIS IS TO CERTIFY THAT Kshitij Navet HAS SATISFACTORILY COMPLETED THE CHEMISTRY PROJECT FOR THE YEAR 2012-2013INTERNALEXAMINER‚ SIGNATURE EXTERNAL EXAMINER‚ SIGNATURE PRINCIPAL SCHOOL STAMP | ACKNOWLEDGEMENT
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INTOLERANCE Intolerance is the failure to appreciate and respect the practices‚ opinions and beliefs of another group. Every man should periodically be compelled to listen to opinions which are infuriating to him. Talking about things that people cannot stand; it could be religion‚ differences between cultures or customs‚ or only different ways of thinking. There are some things that really bug us‚ but the problem is in the way people respond to these things. Intolerance is the principal cause of
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