Glossary

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Amino acids - the constituents of proteins

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Anionic surfactant - a molecule with a negative head group and a hydrophobic hydrocarbon tail

bullet Amphorteric surfactant - a molecule with both positive and negative head groups, and a hydrophobic hydrocarbon tail

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Butyl - containing four carbon atoms

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Carcinogenic - causes cancer

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Cationic surfactant - a molecule with a positive head group and a hydrophobic hydrocarbon tail

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Ethyl - containing two carbon atoms

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Free radicals - fragments of molecules which have an unpaired electron

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Hydrolysis - reaction with water

bullet Hydrophilic - water loving
bullet Hydrophobic - water hating
bullet Methyl - containing one carbon atom
bullet Non - ionic surfactant - a molecule with an uncharged head group and a hydrophobic hydrocarbon tail

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Octyl - containing eight carbon atoms

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Surfactant - a molecule with a charged head group and a hydrophobic hydrocarbon tail

bullet Tripeptide - a compound made up of three amino acids