Dehydration Synthesis PDF

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Dehydration Synthesis 1. In this context, dehydration means being deprived of water. 2. Dehydrated food is food that has been moisture reduced so that it lasts a longer time. Gizmo Warm-up 1. C = 6, H – 12, O – 6 2. A. 24 black spheres B. One per dot. Goal: Construct a molecule of glucose 1. a. valence of oxygen – 2 b. valence of hydrogen – 1 2. Goal: Construct a molecule of glucose. 3. Make a diagram 4. There is a limited number of atoms to be attached to each molecule. C=4, O=2, H=1 5. Carbon has a high valence. It can form many bonds. Question: What occurs when two glucose molecules bond 1. Mono – one, Di – two 2. The glucose molecules will form a water molecule. 3. a. the two glucose molecules combined to form maltose b. 2 hydrogen atoms and one oxygen atom. H20 4. 2(C6H12O6) - C12H22O11 + H2O

5. Dehydration synthesis is the combination of two monosaccharides. When the two monosaccharides combine a water molecule is formed. 6. 3(C6H12O6) - C18H32O16+ 2H2O What occurs when polysaccharides break up into monosaccharides? 1. a. 3 b. 18 Carbon and Oxygen, 36 hydrogens c. 2 water molecules 2. One of the glucoses separated from the polysaccharide chain. 3. The disaccharide broke into two monosaccharides. 4. C18H32O26 + H20 – C6H12O6 + C12H22O11 5. C18H32016 + 2H20 – 3(C6H1206) 6. Hydrolysis reactions break bonds and release energy. 7. a. 3 b. C24H42O21 c. 3 8. If the saliva doesn't interact with the carbohydrates, then the carbs would not be able to break down, therefore water is needed for hydrolysis....