metabolizing.To test the yeast at the lab we used 4 different types of carbohydrates which are known as Glucose‚Lactose‚Sucrose‚and Starch.The main thing that make some of these carbohydrates different from each other is if it’s a Monosaccharide‚ Disaccharide‚or Polysaccharide. Monosaccharide are basic sugars
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Carbohydrates Composed carbon (C)‚ hydrogen (H) & oxygen (O) - simple sugars‚ starches fibre Essential for provision of energy to cells Make up approximately 45−65% of total energy intake. Types of Carbohydrates Sugars Monosaccharides Disaccharides Dietary fibre Glycaemic Index (GI) Physiological classification of foods - carbohydrates Ranked - 0 to 100 Relates to speed – sugars broken down & absorbed High GI - Rapidly digested &
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which are monosaccharides‚ disaccharides and polysaccharides Monosaccharides * they are three main types of monosaccharides which you have to know in this level which are Pentoses - Such as ribose (with formula C5H10O5) and fructose Hexose - Such as alpha and beta glucoses * All members of monosaccharides are reducing since they have the aldehyde groups‚ therefore they will cause a brick red precipitate to form when tested with Benedict’s solution. Disaccharides * You would need to
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Procedure 6.1: Perform Benedict’s test for reducing sugars. Introduction: Benedict’s tests allows for the detection of the presence of reducing sugars. All monosaccharides are reducing sugars since all of them have active carbonyl group. Some disaccharides that are exposed to a carbonyl group are also reducing sugars but less reactive than monosaccharides. By mixing the sugar solution with Benedict’s solution and heating them‚ a redox reaction will occur. The copper (II) sulphate present in Benedict’s
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then the enzyme is produced in the pancreas. Once it gets to the small intestine‚ that’s where most of the chemical digestion occurs and the enzyme is secreted into the small intestine. Once secreted in the small intestine mucosal cells digest disaccharides to monosaccharides. Monosacchrides are absorbed into the cells lining the small intestine and then enter the blood stream then converted to glucose in the liver. The glucose circulating in the blood is our main energy source. Bacteria in the large
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is a type of complex carbohydrate with large polysaccharide molecules that are made up of hundreds of glucose subunits. The digestion of starch begins in the mouth with the enzyme amylase and continues in the small intestine. Maltose‚ a disaccharide‚ breaks down the large polysaccharide molecules. Maltase‚ also found in the small intestine‚ splits each maltose molecule in to two glucose molecules that can be absorbed into the bloodstream. The experiment will be performed by adding
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Section 1: Biomolecules & chemical bonding Reading: Chapter 2‚ concepts 2.3 – 2.5 Chapter 3‚ concepts 3.1 – 3.6 Watch and Learn: Biological molecules http://youtu.be/QWf2jcznLsY Basic Key Concepts After completing the readings and practice exercises‚ students should be able to: Define the biologically relevant interactions (bonds) between molecules. List functional groups commonly found in biological molecules. List from memory the electronegativity of carbon‚ nitrogen‚ oxygen
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beta-galactosidase‚ is an active ingredient in Lactaid. Lactaid helps break down lactose. The second enzyme being used‚ alpha-galactosidase‚ is an active ingredient in Beano which catalyzes the breaking down of melibiose. Melibiose and lactose are both disaccharides composed of two simple sugars galactose and glucose. So‚ can Lactaid break down melibiose as well as lactose (the substrate it is specific to) or Beano break down lactose as well as melibiose (the substrate it is specific to)? How specific are
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Cellular Respiration and Fermentation: Experimenting With CO2 and Redox Reactions Julius Engel; Section 8 Abstract In this experiment‚ the subjects of study were fermentation‚ mitochondrial respiration‚ and redox reactions. In the first experiment‚ yeast was grown in various carbohydrate solutions at various temperatures. In the second experiment‚ succinate was added to various samples of a mitchondrial suspension‚ DPIP‚ and a buffer. Then after two blanks were used‚ the samples
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Monosaccharides Trioses‚ tetroses‚ pentoses‚ hexoses Disaccharides Maltose‚ sucrose‚ lactose Oligosaccharides 3 to 9 Polysaccharides or glycans Homopolysaccharides Heteropolysaccharides D-Glucose in Nature The most abundant carbohydrate is D-glucose. Cells of organisms oxidize glucose for energy: In animals excess glucose is converted to a polymer called glycogen. Disaccharides On hydrolysis give two molecules of monosaccharides
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