What name is given to organic molecules that makes up a chain of individual molecules
Monomer
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Name 3 examples of monomers
Monosaccharides, amino acids, nucleotides
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Monomers can join together to form long chain...
Polymers
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Name 2 examples of polymers
Carbohydrates and protiens
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What are these polymers elements based on
Carbon, hydrogen, Oxygen and nitrogen
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In carbohydrates what is a basic monomer unit of sugar known as
saccharide
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A single unit monomer is therefore known as a...
Monosaccharide
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A pair of monosaccharides combine to make...
Disaccharide
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They can be combined to much larger numbers to form
Polysaccharide
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What is a monosaccharide?
A sweet tasting soluble substance with the chemical formula (CH20)n, n can be from 3 to 7
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Name 3 examples of monosaccharides
gluecose, galactose and fructose
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How many isomers does gluecose have
2, alpha-gluecose and beta-gluecose
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All monosaccharides and some disaccharides are known as
reducing sugars
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How does reduction work
it is a chemical reaction involving the gaining of electrons or hydrogen
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What is a reducing sugar
it is a sugar that can donate electrons/reduce another chemical e.g. benedicts reagent
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What is the test for reducing sugars known as
Benedicts test
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What is benedicts regent
copper(II) Sulfate
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What happens when benedicts reagent is heated with a reducing sugar
insoluble red precipitate, copper (I) oxide
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How is the benedicts test carried out
1.) Add 2cm^3 of the food sample into a test tube in liquid form 2.) add an equal amount of the bendicts reagent 3.) Heat the mixture in a gently boiling water bath for 5 minutes
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What name is given to organic molecules that makes up a chain of individual molecules
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