A compound made of amino acids linked by peptide bonds
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Zwitterion
A Dipolar ionic form of an amino acid that is formed by the donation of a H+ ion from the carboxyl grooup to the amino group, because both charges are present there is no overall charge.
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Isoelectric Point
The pH value at which the amino acid exists as a zwitterion
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Condensation Reaction
A reaction in which 2 small molecules react together to form a larger molecule with the elimination of a small molecule such as water.
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Hydrolysis
The breaking of a bond by reaction with water. Hydrolysis can be catalysed by acid or alkali.
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Stereoisomers
Species with hthe same structural formula but with a different arrangement of the atoms in space.
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Chiral Carbon
Is a carbon atom attached to 4 different atoms or groups of atoms.
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Optical Isomers
Stereoisomersthat are non-superimposable mirror images of each other.
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Repeat Unit
The specific arrangement of atoms that occurs in the atructure over ad over again. Repeat units are included in brackets, outside which is the letter n.
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Biodegradable polymer
A polymer that breaks down completely into CO2 and H2O
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Degradable polymer
A polyer that breaks down into smaller fragments when exposed to light, heat or moisture.
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Card 2
Front
Zwitterion
Back
A Dipolar ionic form of an amino acid that is formed by the donation of a H+ ion from the carboxyl grooup to the amino group, because both charges are present there is no overall charge.
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