MSCI 530 Quiz 7 Amino acids

MSCI 530 Quiz 7: Amino acids and Vitamins Metabolism

  1. The type of atrophic gastritis that is characterized by megaloblastic anemia, histamine-fast achlorhydria and antibodies against the intrinsic factor is;
  2. This cause of Vitamin B12 deficiency leads to an early onset of symptoms in affected patients;
  3. During a neonatal genetic screening, Betty’s baby is found to have phenylketonuria. The defective enzyme in this disease is most likely?
  4. A patient with Vitamin B 12 deficiency due to decreased intrinsic factor production will get the least benet from this form of treatment;
  5. Which of these is least likely to result in hyperhomocysteinemia?
  6. Which of these amino acids is considered conditionally essential because its levels are dependent on dietary intake of methionine?
  7. Which of these amino acids is considered as strictly ketogenic and cannot be used in gluconeogenesis?
  8. Tyrosine is a precursor for these hormones except;
  9. Which of these is a branched-chain amino acid?
  10. Tryptophan is a precursor for the synthesis of;
  11. Maple syrup urine disease results from the deficiency of this enzymes that is involved in the metabolism of Isoleucine;
  12. This activity of this enzyme will not likely be affected by a deficiency of dihydrobiopterin reductase;
  13. Which of these hormones is not inactivated by monoamine oxidase?
  14. In patients with with pyridoxine-responsive epilepsy, PLP is deficient due to its sequestration by;
  15. In phenylketonuria, phenylalanine hydroxylase deficiency leads to the increased urinary excretion of this metabolite;
  16. Aminopterin is used as an anti-cancer drug to reduce the rate of cell proliferation by inhibiting this enzyme;
  17. Which of these conditions is least likely to impair the activity of methionine synthase?
  18. A deficiency of these vitamins can result in hyperhomocysteinemia except;
  19. Which of these does not serve as a one-carbon donor to FH4?
  20. The deficiency of Vitamin B12 often results in a folate trap in the the form of N5-methyl-FH4 (a functional folate deficiency) due to;

 

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  1. MSCI 530 Quiz 7
  • Liberty University