Amino acids react by condensation polymerisation to produce polypeptides. (HT only)

In the subtopic Polymerisation and naturally occurring polymers, this learning objective focuses on amino acids react by condensation polymerisation to produce polypeptides. (HT only). It sits within Reactions of alkenes and alcohols (chemistry only) for AQA GCSE Chemistry 8462 Unit 4.7 Organic chemistry, so the explanation must stay anchored to organic chemistry rather than becoming a generic carbon-compounds fact. Approved keywords to use include polymer, condensation polymerisation, polypeptide, amino acid, HT only. Polypeptide. means a polymer formed from the condensation polymerisation of amino acids Avoid the mistake of students often confuse condensation polymerisation with addition polymerisation, thinking they are the same process; instead, remember that condensation polymerisation involves the loss of small molecules like water, while addition polymerisation does not produce any by-products For exam answers, focus on how amino acids join through condensation polymerisation to form polypeptides, remembering that water is released in the process Keep molecular formula, structural formula, displayed formula, and general formula distinct. Do not confuse alkanes with alkenes, saturated with unsaturated, cracking with combustion, polymers with monomers, or hydrocarbons with oxygen-containing alcohols and carboxylic acids. When formulae are used, preserve the stored notation exactly and explain the GCSE chemistry idea in words rather than using unsupported displayed-formula diagrams.