MSCI 530 Quiz 1 Intro to Human Metabolism

MSCI 530 Quiz 1: Introduction to Human Metabolism

  1. An enzymes is a catalyst that increases the rate of biological reactions while shifting the equilibrium of the reaction in favor of the products irrespective of the substrate concentration.
  2. This enzyme type catalyzes the intramolecular rearrangements of functional groups that reversibly interconvert optical or geometric isomers;
  3. The covalent attachment of glucose to hemoglobin to form glycated hemoglobin (HbA1c)is a reaction catalyzed by this enzyme;
  4. Which of these co-factors/vitamins serves in the transfer of acyl groups in the reactions it is involved in?
  5. Which of these metal ions is wrongly paired with the enzyme it is associated with in biological catalyses?
  6. Which type of enzyme inhibition reduces the Vmax but does not change the Km of the enzyme?
  7. The conjugation of bile acids to glycine or taurine reduces their pKa making then more amphipathic and more effective emulsifiers of fat.
  8. Which of these is not a fat-soluble vitamin?
  9. Which of these enzymes is involved in the enteric activation of pancreatic trypsinogen?
  10. Which of these is considered a dietary fiber?
  11. Which of these is not a metabolic fate of the product of the hexokinase-catalyzed reaction in glycolysis?
  12. The end-product of glycolysis in erythrocytes (mature red blood cells) in th epresence of oxygen is;
  13. Which of these glucose transporters is highly expressed in adipocytes and muscles tissues in an insulin-dependent manner?
  14. Which of these glycolytic enzymes do you suspect will be directly affected in a patient who has been diagnosed with arsenic poisoning?
  15. In which of these enzyme deficiencies will you not expect a high plasma galactose levels?
  16. Which of these is the major regulatory enzyme of glycolysis and catalyzes its rate-limiting step?
  17. Which of these factors do you suspect will have an inhibitory effect on the activity of hepatic phosphofructokinase-1?
  18. These tissues are very dependent on glucose for their energy supplies and are not able to metabolize fatty acids for ATP generation due to the absence or very low numbers of mitochondria except;
  19. Which of these secretions of seminal vesicles serves as a major fuel source for sperm cells?
  20. At rest, muscle cells derive most of their energy from the oxidation of glucose via the glycolytic pathway.
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