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This lesson covers the structure of amino acids, the formation of peptide bonds, and the assembly of polypeptides as required by the Edexcel A-Level Biology B specification (9BI0), Topic 1: Biological Molecules. You need to understand the general structure of amino acids, how they join together, and the significance of the R-group in determining the properties of different amino acids.
Proteins are the most structurally and functionally diverse group of biological molecules. They are involved in virtually every biological process:
All proteins are polymers of amino acids. The sequence of amino acids in a protein is determined by the sequence of nucleotides in DNA (the genetic code).
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