Nutrition_CH9_Water-Soluble_Vitamins

  1. When water-soluble vitamins are found in urine in healthy individuals, it generally means that they have been:




    D.
  2. Acting as a coenzyme is a major function of:




    A.
  3. Vitamin C is important in collagen synthesis because it acts:




    D.
  4. Although excess absorbed ascorbic acid is excreted in urine, the body has an estimated maximal body pool of 1500 mg which can be maintained with intakes of _____ vitamin C per day.




    A.
  5. Vitamin C is important in wound healing and maintenance of skin, tendons, cartilage, bone and dentine due to its importance to which enzyme?




    D.
  6. Which of the following vitamins is important for entry of long-chain fatty acids into the mitochondrial matrix?




    D.
  7. Vitamin C acts in all of the following capacities EXCEPT:




    B.
  8. Thiamin plays major roles in all of the following EXCEPT:




    A.
  9. Transketolase is an enzyme in the hexose monophosphate shunt that requires which of the following vitamins as a coenzyme?




    C.
  10. Beriberi is a symptom of deficiency of which vitamin?




    B.
  11. B complex vitamins important for hematopoiesis include all of the following EXCEPT:




    B.
  12. Flavoproteins are especially important in _____.




    C.
  13. Tryptophan catabolism diverts about 3% of dietary intake to the liver synthesis of which vitamin?




    C.
  14. NADPH produced in the hexose monophosphate shunt is a reduced form of one of the coenzyme structures of which vitamin?




    B.
  15. Symptoms of pellagra include _____.




    A.
  16. Which of the water-soluble vitamins is a component of acyl carrier protein, a necessary part of the fatty acid synthase complex?




    A.
  17. Which vitamin, as part of coenzyme A, forms thio esters with carboxylic acids such as succinic acid and acetic acid?




    D.
  18. Which vitamin is a coenzyme needed for particular enzymes to add a carboxyl group to an existing molecule?




    C.
  19. A genetic deficiency of what enzyme is associated with these symptoms: lethargy, depression, hallucinations, muscle pain, paresthesia in extremeties, anorexia, nausea, alopecia, and red dermatitis?




    B.
  20. Folate in supplements is more easily absorbed than folate in food, making one dietary folate equivalent (DFE) equal to one mcg food folate and _____ mcg from a supplement or fortified food consumed with a meal.




    D.
  21. Ingested folate requires the addition of _____ to make it active as a coenzyme.




    A.
  22. Tetrahydrofolate is vitally important for dividing cells during growth and cancer and knowledge of this need is used in cancer treatment by giving the drug Methotrexate to inhibit the enzyme _____.




    B.
  23. A vitamin B12 deficiency is usually associated with lack of adequate _____.




    B.
  24. Which group of individuals is most likely to have a vitamin B12 deficiency?




    C.
  25. Vitamin B6 is a coenzyme for > 100 enzymes mostly involved in _____.




    D.
  26. FMN is required for the metabolism of what other vitamin to its primary coenzyme form?




    A.
  27. Vitamin B6 functions importantly in all of the following EXCEPT _____.




    C.
  28. Hypochromic, microcytic anemia is a deficiency symptom of inadequate intake of _____.




    D.
  29. High intakes of pyridoxine greater than 100 mg/d may cause _____.




    D.
  30. Nutrients can affect expression of our genes in all of the following ways except one; thus nutrients CANNOT:




    A.
Author
PicOlio
ID
124685
Card Set
Nutrition_CH9_Water-Soluble_Vitamins
Description
Human Nutrition CH9 - The Water-Soluble Vitamins
Updated