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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The two food substances that had the most were butter and starch. The organic compounds that are most common in foods that come from plants are carbohydrates. However‚ the organic compounds that are most common in animal meat are proteins. The original colors of the food substances did affect our test results. For example‚ if the substance was yellow‚ such as apple juice‚ and we were trying to test
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as part of a meal. Conceptual Terms The definitions of terms are based on concepts or hypothetic ones‚ which are usually taken from the dictionary. 1.) Calorie - a quantity of food capable of producing such an amount of energy. 2.) Carbohydrate - a source of energy and include foods composed of starches and sugars. 3.) Fiber - The parts of grains‚ fruits‚ and vegetables that contain cellulose and are not digested by the body. Fiber helps the intestines absorb water‚ which increases the
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* a fast heart beat * blurry vision * a headache Treating Low Blood Sugar If you have low blood sugar feelings‚ eat or drink something fast. These are foods you can eat if you think your blood sugar is low: * 15 grams of carbohydrates * 3-4 glucose tablets * 4-6 ounces of fruit juice or regular soda * 6-10 hard candies * 2-3 teaspoons of honey or sugar It is important to carry hard candies‚ glucose tablets‚ sugar cubes with you in case you have a low blood sugar
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Feeney Biology 9 October 16‚ 2012 Identifying Organic Compounds Objective: To use indicators to test for the presence of organic compounds in certain substances. Theory: Major types of organic compounds in some common foods are Lipids‚ Carbohydrates‚ and Proteins. An indicator is a chemical compound that changes color and structure when exposed to certain conditions and is therefore useful for chemical tests. The purpose of using distilled water as one of the substances in the test is that
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BI108 QUIZ No2: Chapters 3 & 4: Macromolecules 1. . The major carbohydrate-storage molecule in plants is: a. starch. b. cellulose. c. glycogen. d. deoxyribonucleic acid. e. maltose 2. The helix is an example of which level of protein structure? a. Primary structure b. Quaternary structure c. Secondary structure d. Tertiary structure e. none of the above 3. The number of D-amino acids that occur naturally in proteins is: a. zero. b. 20. c. 19. d. 9. e. none of the above 4. In polysaccharides
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Sugar‚ one of the most used item in making various beverages worldwide. Almost every kind of beverages have sugar poured in to add the sweetness. Coffee‚ tea‚ juice‚ latte‚ milk‚ and many more. It’s like people will always take note "don’t forget to add sugar" when making any kind of drinks. It’s not uncommon to find sugar in most kind of foods either. What people usually overlook is the fact that sugar also provides health benefits. One example of healthier sugar is Panela sugar. This type of sugar
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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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ed.‚ p. 121). New York: Garland Science. Department of Biology. (2013). Identification of Some Macromolecules. BIOL 130L Lab Manual (pp. 14-18). University of Waterloo. Giuseppe‚ M. (2003). Carbohydrate. Nelson biology 12 (pp. 29-30). Toronto: Nelson Thomson Learning. Giuseppe‚ M. (2003). Carbohydrate . Nelson biology 12 (pp. 31-32). Toronto: Nelson Thomson Learning. Giuseppe‚ M. (2003). Protein . Nelson biology 12 (pp. 44-47). Toronto: Nelson Thomson Learning.Scheraga‚ H. A. (1961). Hydrodynamic
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known as macromolecules. The objective of this lab was to correctly identify which macromolecules the unknown solution was comprised of using various substances as experimental controls. There are four major types of biological macromolecules - carbohydrates‚ lipids‚ proteins‚ and nucleic acids - made up of elements such as carbon‚ hydrogen‚ oxygen‚ nitrogen‚ sulfur‚ and phosphorus in various combinations. Macromolecules are essential for survival; they provide structural support‚ a source of stored
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