AQA · Chemistry · 8462
GCSE Chemistry: Amino acids
Organic chemistry · AQA GCSE Chemistry (8462), specification point 4.7.3.3. Cards are generated from the exam board's own specification for "Amino acids", and every card links back to the page it came from. Higher tier only. Separate science only. Specification © AQA — used with attribution.
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How many different functional groups does an amino acid molecule contain?
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Two.
Which two functional groups are present in an amino acid?
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An amine group (–NH2) and a carboxylic acid group (–COOH), e.g. glycine H2NCH2COOH.
What type of polymerisation do amino acids undergo?
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Condensation polymerisation.
Amino acids react by ? polymerisation to produce polypeptides.
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condensation
What is produced when amino acids polymerise?
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A polypeptide.
What is the molecular formula of glycine?
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H2NCH2COOH.
Glycine
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H2NCH2COOH — the simplest amino acid.
What is the repeating unit of the polypeptide formed from glycine?
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(–HNCH2COO–)n, formed by condensation polymerisation with loss of water.
What is formed when different amino acids are combined in the same polymer chain?
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A protein.
Different amino acids combined in the same chain produce ?.
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proteins
Is the amino acids topic (4.7.3.3) examined at Foundation tier in AQA GCSE Chemistry?
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No — it is Higher Tier only.
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