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CarbohydratesMonosaccharidesandDisaccharides
Lesson aims
•Describe with the aid of diagrams the formation and breaking of glycosidic bonds in the synthesis and hydrolysis of a disaccharide (maltose) and a polysaccharide (amylose)
• Water molecules is released• New covalent bond is formed• Larger molecule is formed by bonding of smaller
molecules
• 2 H removed and 1 O Which forms water
• Glycosidic bond• Covalent bond is formed- electrons are shared
Range of Carbohydrates and Functions
Monosaccharides Disaccharides Polysaccharides
ALL contain the elements:
Building and Breaking Disaccharides
H2O removal
condensation reactionadd H2O
α-glucose
α-glucose
maltose
glycosidic link
hydrolysis reaction
Maltose has an α-1,4 glycosidic link.What do the numbers refer to?
What type of glycosidic links are found in cellobiose and sucrose?
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