Biology 12 - Module 1 - Lesson 1.2B Biological Molecules- Carbohydrates

Biology 12 - Module 1 - Lesson 1.2B Biological Molecules - Carbohydrates

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Carbohydrates
Made primarily of carbon, hydrogen and oxygen in a ratio of 1:2:1.  The empirical (simplest) formula for any carbohydrate is (CH2O)n
Cellulose
A polysaccharide that makes cell walls hard enough to permit non-woody plants to stand upright if they receive adequate water
Dehydration synthesis
A process that joins monomers to build polymers.  As monomers join, a water molecule is produced
Disaccharides
Composed of double sugars formed from two monosaccharides during dehydration synthesis
Hydrolysis
Reaction in which the cell degrade macromolecules by removing water molecules 
Maltose
A disaccharide.  Glucose bonding with glucose gives us maltose (malt sugar)
Monomer
Simple organic molecules that exist individually or link with other monomers to form a polymer
Monosaccharides
Molecules such as glucose and fructose , which are single sugars; each has a similar chemical formula of C6H12O6
Polymer
A macromolecule created by the dehydration reaction of monomers
Polysaccharides
Long chain molecules that contain many glucose sub-units 
Starch
Plants store glucose as starch.  Starch molecules (polysaccharides) are composed of up to 4000 glucose units.