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Which part of the amino acid?

Exercise and reference answers

Items
  1. Item
    The amino group
    Category
    Fixed on every amino acid
  2. Item
    The carboxyl group
    Category
    Fixed on every amino acid
  3. Item
    The α-carbon
    Category
    Fixed on every amino acid
  4. Item
    The R group
    Category
    Varies between them
  5. Item
    The side chain
    Category
    Varies between them
Categories
  1. Item
    Fixed on every amino acid
  2. Item
    Varies between them

Explanation

Three functional groups plus the variable side chain. Source: syllabus Biology, Ch 9 Biomolecules.
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