ratio of 1.2.1.. There are many different types of carbohydrate‚ all of which are useful to living organisms. The most important carbohydrate is probable glucose. Glucose is a monosaccharide and is the monomer unit which makes up more complex polysaccharides. Two glucose molecules can be joined in a condensation reaction‚ whereby water is removed‚ for example to produce maltose‚ a disaccharide. The bond between the glucose molecules is a 1-4 glycosidic bond. Glucose is also soluble‚ a reducing sugar
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Carbohydrates & Glycobiology Dr. Jeelan Moghraby B.Sc.‚ D.Phil Assistant Professor Email: moghrabyj@ksau-hs.edu.sa Lecture 13 & 14 BIOC211 2013 Objectives Describe the structure of carbohydrates Classify the types of carbohydrates Recognise different types of glycoconjugates and their role Dr. Jeelan Moghraby Introduction Carbohydrates Most abundant organic molecule in nature Empirical formula (CH2O)n Originally produced from CO2 and H2O during
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MACROMOLECULS LAB: What are the mystery powders? Period: 4 Asia Enoch Introduction: A carbohydrate is an immediate form of energy in your body. Monomers is smaller than a polymer. For carbohydrate the monomer is sugar and the polymer is a polysaccharides. Carbohydrates are important to our body because we need to use energy. The purpose of this lab is to figure which one is the monomer and which one is the polymer. Hypothesis: If I place two drops of iodine into the mystery powder‚ it would
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Questions 1. Monosaccharides and polysaccharides are two classes of Carbohydrates 2. Long chains of amino acids make up Proteins_ and contain the atom _Nitrogen which is unique to this macromolecule. 3. Fats like triacylglycerols are the macromolecule ___lipids_____. 4. You just reviewed type of carbohydrates. Glucose is a simple sugar called a monosaccharide ‚ whereas starch contains compound carbon chains and is a polysaccharide . 5. Polysaccharides are formed by a dehydration synthesis
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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 a few hundred to a few thousand monosaccharides.
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that form each of the following disaccharides and give their common name. 1. maltose-glucose:glucose 2. sucrose-glucose:fructose 3. lactose- • a. What are polysaccharides?macromolecules polymers with a few hundred to a few thousand monosaccharides joined by a glycosidic linkage b. Which forms of polysaccharide is best for each function listed below? 1. strength of structure- glycogen(animals)‚starch(plants)‚chitin(exoskeletons) 2. storage and sugar release-cellulose‚ c
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Chitin is one of the most abundant polysaccharide in nature‚ being only second after cellulose. It can be found in animals (exoskeletons of crustacean and insects) as well as in fungi‚ mushrooms and yeasts. Chitin can be described as a biopolymer composed of N-acetyl-D-glucosamine; a chemical structure very close to cellulose except that the hydroxyl group in C of cellulose is replaced by an acetamido group in chitin. One can associate this chemical similarity between cellulose and chitin as serving
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Dialysis of starch‚ glucose and sucrose Introduction: Research question: Does the dialysis tube only allow certain substances to pass through the pores because of their size? Dependent and Independent variables: Independent variables: The temperature of the classroom The size of the molecules The size of the pores in the tube The concentration of the indicators Dependent variables: The substance will either pass the pores of the tube or not The result will vary in darkness (color) Controlled
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BIOLOGICALLY IMPORTANT MOLECULES Abstract Compounds containing the element carbon‚ called organic compounds‚ are the most important substances that make up living organisms. There are thousands and thousands of different organic compounds. To identify the major types of organic compounds in living organisms ‚ several biochemical test were used . Introduction Organic molecules are those primarily made up of carbon‚ hydrogen and oxygen. The common organic compounds of living organisms are
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(boil for 4 minutes -> it has extra pectin added to help setting) This is a polysaccharide It is found in the cell walls of ripe fruit. Pectin affects the setting quality of the jam. Releases pectin from the cell walls of the fruit as the fruit softens. Gives a good colour and flavour to jam. Acid prevents crystals forming. Lemon juice is commonly added. A closer look at pectin Pectin = carbohydrate -> Polysaccharides Using lemon juice helps to draw the pectin from the cell wall. Under-ripe
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