sunflower seeds | Corn Starch | Turns Yellow/-ve | Turns Orange/-ve | Turns Puple-+ve/ Starch is present | -ve/ not present in corn starch | Discussion : The reducing sugars include all monosaccharides such as glucose and fructose and some disaccharides such as maltose. Benedict’s Test for reducing sugars contains copper sulphate. Reducing sugars reduce souluble blue copper sulphate‚ containing copper (II) ions (Cu2+) to insoluble red-brown copper
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specific substrate (lactose). Students will observe the actions of the enzyme and how shape is important to enzyme reactions. Background information: Lactose‚ the sugar found in milk‚ is a disaccharide composed of glucose and galactose (both six-sided sugars). Sucrose‚ ordinary table sugar‚ is also a disaccharide composed of fructose and glucose. Glucose is a six-sided sugar and fructose is a five-sided sugar. Lactase is an enzyme that breaks lactose down into galactose and glucose. Lactase can be
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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 of carbohydrates GroupPropertiesExamples Monosaccharides general formula:(CH20)n(n = 3 to 0)Small
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PAMANTASAN NG LUNGSOD NG MAYNILA (University of the City of Manila) Intramuros‚ Manila COLLEGE OF NURSING Benedict’s Solution Submitted by: Marco Antonio A. Baltazar BSN IV-3 Submitted to: Prof. Marilyn Agravante Community Health Nursing Benedict’s Solution What is Benedict’s Solution? Benedict’s solution‚ deep-blue alkaline solution used to test for the presence of the aldehyde functional group‚ - CHO. The substance to be tested is heated with Benedict’s solution; formation
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higher concentration to a lower concentration. The blue color is evident that there is movement of molecules. 7. What does the Benedict’s reagent test detect? It is a test performed to test the reduction of sugars such as monosaccharide’s and disaccharides. 8. What does the test of the jar water indicate? That the starch molecules in the dialysis tubing are larger than the in the tubing therefore they cannot be transferred through the process of osmosis or diffusion. 9. What substance did not
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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 of
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test the carbohydrate is a disaccharide. Data Type of carbohydrate | Benedicts Test | Iodine Test | Monosaccharide | R | NR | Disaccharide | NR | NR | Polysaccharide | NR | R | Solution | Bendicts Test | Iodine Test | Honey | R | NR | Oats | NR | R | Table Sugar | NR | NR | Apple Juice | R | NR | Powdered Sugar | NR | NR | Results Solution | Type of carbohydrate | Honey | Monosaccharide | Oats | Polysaccharide | Table Sugar | Disaccharide | Apple juice | Monosaccharide
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pretty but rather useless at this point in our journey. We need to see the atoms! | Figure 1: Space-filling Model of Sucrose (Click on image to visit originating website.) | In Figure 2‚ you will find the structural formula for sucrose. It is a disaccharide made from the simple sugars glucose (on the left) and fructose (on the right). I will caution you right now that there are many different view of sucrose on the internet‚ so if this one does not agree with your impression‚ there are reasons:
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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. Disaccharides- Two monosaccharides that are joined by a glycosidic linkage. Polysaccharides- Storage or structural macromolecules made from
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of chemical tests to identify some physical and chemical characteristics of typical carbohydrates. Differentiate between monosaccharides‚ disaccharides‚ and polysaccharides using above tests Identify an unknown carbohydrate Results A. STRUCTURAL FORMULAS FOR CARBOHYDRATES MONOSACCHARIDES STRUCTURES FISCHER HAWORTH CHAIR Glucose Fructose DISACCHARIDES (Haworth and Chair structures only) Lactose Sucrose HAWORTH CONFORMATION HAWORTH CONFORMATION CHAIR CONFORMATION CHAIR CONFORMATION
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