Amino Acids

OCR A-level Organic ChemistryTopic 13 of 155 lessons

Revision notes for Amino Acids in OCR Chemistry A (H432). Read the start of any lesson here, then sign in free for the whole lesson, the R.E.C.I.P.E. recall steps and the quiz.

1. Amino-AcidsAmino-acids are bifunctional molecules with both an amine and a carboxyl group.
2. ZwitterionsThe acidic carboxyl group and basic amine group of the amino acid can react and form an internal salt called a zwitterion.
3. PolypeptidesAmino-acids can link together by condensation reactions to form polymers called polypeptides.
4. ProteinsProteins have a primary structure based on the order of amino-acids joined together.
5. Optical IsomerismStereoisomers are species with the same structural formula but different arrangements of the atoms in space.

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