and time Materials : Iodine solution‚ Benedict’s solution‚ 1% starch suspension‚ 30% glucose solution and distilled water Apparatus : A Visking tube‚ cotton thread‚ test tubes‚ beaker and water bath Procedure - Soak the Visking tube in water for 5 minutes to soften it. Open the Visking tube and tie one end of the tube with cotton thread to prevent leakage. - Fill the Visking tube with 15ml of glucose solution and 15ml of starch suspension. Tie the other end of tube tightly with cotton thread
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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 of carbohydrates GroupPropertiesExamples Monosaccharides general formula:(CH20)n(n
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affect the respiratory rate. In our experiment‚ we tested how 8.75% glucose + 1.25% NaCl‚ 8.75% glucose + 1.25% glucose-6-phosphate‚ 8.75% glucose + 1.25% citric acid‚ and yeast solution‚ all mixed with distilled water‚ affect carbon dioxide volumes and respiratory rate. Our results indicate that with time‚ carbon dioxide volumes decrease in the presence of heat‚ some much faster than others. We can also conclude that oxygen‚ glucose-6-phosphate‚ and the positive control are the least resistant to
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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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I have been asked to investigate the effects of osmosis on potato cell sap. I will test potato cylinders in different strengths of sucrose solution and record any results in a table. I will then analyse my findings and work out the isotonic point of the potato cell sap. Prediction I have looked at my scientific knowledge from the background theory I carried out and I will base my prediction upon this information. In this experiment‚ I expect the different concentrations to show fairly noticeable
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order to provide the fuel your body requires. Because of this certain individuals may suffer from a condition referred to as low blood glucose. Most foods are carbohydrate-rich‚ and without your knowledge‚ you may have been putting too much of these foods into your body. Hence‚ high blood glucose is very common but in certain individuals causes low blood glucose. You already knew that carbohydrates are a primary energy source to keep your body functioning properly. At times‚ when you are not getting
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A simple sugar such as glucose is an example of a carbohydrate with some of these structures. Glucose exists almost entirely in the cyclic form. Two forms of ‐glucose The most important simple carbohydrate is glucose. It is found as a major component of other carbohydrates. For example‚ maltose is a carbohydrate composed of two glucose units. Lactose (milk sugar) contains one glucose unit and one galactose unit‚ sucrose (table sugar) contains one glucose unit and one fructose unit
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Your Health section focuses on diseases that affect blood glucose regulation. KEY TERMS Acceptable Daily Intake (ADI) Acesulfame-K Amylopectin Amylase Amylose Aspartame Cellulose Cyclamate Dental caries Dietary fiber Diverticula Diverticulitis Diverticulosis Epinephrine Fasting hypoglycemia Fiber Fermentation Fructose Functional fiber Galactose Glucagon Glycemic index (GI) Glycemic load (GL) Glycogen Glucose Gums Hemorrhoid Hemicellulose Hyperglycemia Hypoglycemia
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providing energy for working muscles‚ providing energy for the regulation of blood glucose‚ preventing proteins being used for energy‚ breaking down fatty acids and playing a part in biological recognition processes. Glucose is one of the most commonly known carbohydrates and comes under the category of a monosaccharide. Monosaccharaides are the basic molecular units (monomers) of which carbohydrates are composed. Glucose is vital as it provides energy for cells which provide all the necessary processes
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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 acid
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