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Biochem unit 4 competencies

Biochem unit 4 competencies - 1 Biochemistry II Final Exam...

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1 Biochemistry II Final Exam Study Guide Protein Metabolism: Knowledge: Contrast the structure of amino acids, fatty acids and monosaccharides. amino acids à carbon chain with a carboxyl group on the end and a an amine group fatty acids à carbon chain with a carboxyl group on the end monosaccharides à carbon chain with a carboxyl group on the end and hydroxyl groups Define nitrogen balance and state the RDA for protein to maintain balance. intake of nitrogen = output of nitrogen RDA à 0.57 gm/kg Identify conditions where negative and positive nitrogen balance would occur. negative à lean mass being lost positive à protein being used to build skeletal muscle Explain the fate of excess amino acids in the body. are degraded amine groups are removed by transamination and oxidative deamination ammonia is formed urea is formed Identify the 2 products of amino acids after deamination ammonia ketoacids Define anaplerotic and cataplerotic. anaplerotic à giving something to the cycle cataplerotic à taking something away from the cycle Contrast the RDA for protein versus the needs of endurance and resistance athletes. RDA à 0.8-1.0 gm/kg endurance athlete à 1.2-2.0 gm/kg resistance athlete à 2.0 gm/kg Explain what is meant by a “free amino acid pool.” a “pool” of amino acids available for use in reactions within the body – branched chain amino acids Define transamination and deamination. transamination à transfer of an alpha amino group from an amino acid to the alpha-keto position of an alpha-keto acid deamination à removing the alpha amino group from an amino acid Identify the role of alpha ketoglutarate and glutamate in transamination. Discuss the role of aspartate
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Biochem unit 4 competencies - 1 Biochemistry II Final Exam...

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