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6.5: Protein Metabolism

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  • Section 2.22 described how proteins are synthesized. Thus, this section will focus on how proteins and amino acids are broken down. There are four protein metabolic pathways that will be covered in this section:


    -transfer of an amino group from one amino acid to another


    -removal of an amino group, normally from an amino acid.


    -synthesis of glucose from a non-carbohydrate source.

    Protein Turnover/Degradation

    -liberation of amino acids from proteins.

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