whilst a polypeptide is a chain of amino acids. b) Fat and oil differences: They are both lipids‚ but fats are solid whilst oil are liquids. c) Difference between starch and glycogen: Starch is a polysaccharide found in plant tissue whilst glycogen has polysaccharide found in animals. d) Condensation and hydrolysis: Condensation is a chemical process by which 2 molecules are joined together to make a larger‚ more complex‚ molecule‚ with the loss of water. Instead‚ hydrolysis
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Pre-lab 1: Identifying Carbohydrates Abstract The point of this lab is to determine if a substance contains carbohydrates such as a reducing sugar and/or polysaccharides. This will be done by using Benedict’s reagent and Iodine stain tests. Benedict’s reagent will react to reducing substances in the solution by oxidizing it and changing the structure of the reducing sugar to form a colored precipitate. The color of this precipitate can be used to determine the concentration of reducing sugars in
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nightshade fruit is most efficient as an anti-neoplastic agent? 2. What concentration of the extract is most efficient against HPV related cervical neoplasms? 3. What are the implications by the study should the crude polysaccharides derived from the product be proven a potent anti-neoplastic agent? HYPOTHESES: Is the Lubi-lubi extract a potent anti-neoplastic agent against HPV related cervical neoplasms? • Null hypothesis The lubi-lubi (Atropa belladonna)
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is a polysaccharide. If no reaction occurs in either 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 |
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and their complex structures. In Bio 202 one way we’ve learned to examine a cell is by taking advantage of the differences within the chemical reactivity of the molecules located within (Lab Manual‚ Chp. 5). Major biological molecules such as Polysaccharides‚ lipids‚ nucleic acids and proteins can be detected with in cells by a technique known as Cytochemistry. Cytochemistry is the practice of fixing‚ staining‚ and examining cells (Lab Manual‚ Chp. 5). Cytochemistry is an in situ experiment‚ meaning
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the number of combining monosaccharide units‚ forming an oligosaccharide or polysaccharide. In the experiment‚ the sulfated polysaccharide‚ κ-carrageenan is extracted. Carrageenans‚ in general‚ have high molecular weights polysaccharides made up of repeating galactose units and 3‚6 anhydrogalactose (3‚6-AG)‚ joined by alternating alpha 1-3 and beta 1-4 glycosidic linkages. There are various types of the polysaccharide which include alpha‚ beta‚ lamba‚ kappa‚ mu‚ and iota carrageenan (figure 1)
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Name: ______________________________________ Date: ________________________ Student Exploration: Dehydration Synthesis Vocabulary: carbohydrate‚ chemical formula‚ dehydration synthesis‚ disaccharide‚ glucose‚ hydrolysis‚ monosaccharide‚ polysaccharide‚ valence Prior Knowledge Questions (Do these BEFORE using the Gizmo.) 1. If you exercise on a hot day‚ you need to worry about dehydration. In this context‚ what do you think dehydration means? When you are exercising in the heat you will
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strains of pneumococci: a smooth strain‚ which was coated with a polysaccharide‚ and a rough strain‚ which had no coating on it (Carter‚ 1996). Griffith began testing these
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his colleagues this time used test tube assay. 1. Detergent was used to lyse the heat-killed S cells in which 2 layers of component were shown which was cellular debris below and lysate on the surface.The lysate contains of components RNA‚ DNA‚ polysaccharide coat and protein. The lysate was then extracted to be used as the transformation assays in which it worked and showing that the heat-killed S lysate could change R to produce S bacteria. They concluded that the lysate contains the transforming
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ml 1% solution in a small beaker. b. Add 5 drops conc. HCl. c. Cover the mouth of the test tube with a marble and boil in a water bath for 30 minutes. d. Neutralize with solid Na2CO3. Set aside for part B. 3. For polysaccharide extract a. Repeat
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