Chapter 26: Problem 12
Atrophic gastritis can interferc with zinc absorption. Zinc normally plays a role in all of the following except A. growth in children. B. wound healing. C. taste acuity. D. prevention of goiter. E. immune function.
Chapter 26: Problem 12
Atrophic gastritis can interferc with zinc absorption. Zinc normally plays a role in all of the following except A. growth in children. B. wound healing. C. taste acuity. D. prevention of goiter. E. immune function.
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Get started for freeAlcohol impairs both absorption and storage of folate, Megaloblastic erythropoicsis occurs because cells are arrested in the S phase since DNA synthesis is inhibited. DNA synthesis is inhibited in folate deficiency because tetrahydrofolate is required A. in the synthesis of purine nucleotides and dTMP. B. in the conversion of homocysteine to methionine. C. for the utilization of Vitamin B \(_{12}\) D. all of the above. E. none of the above.
Copper is an essential element. All of the following are correct about copper except A. it is a component of several oxidase enzymes. B. it is involved in the conversion of stearic acid to oleic acid. C. copper deficiency may lead to anemia. D. cellular uptake and efflux of copper are catalyzed by different transporters. E. copper deficiency occurs in tandem with a zinc deficiency.
The neurological disorders seen in vitamin \(\mathrm{B}_{12}\) deficiency are caused by progressive demyelination of nervous tissue. How does lack of \(B_{12}\) interfere with formation of the myelin sheath?
What is the chemical reaction in which vitamin K participates? How is this reaction involved in blood coagulation and bone formation?
Choline, recently reclassified as essential, A. cannot be synthesized de noun. B. affects DNA methylation so is critical during fetal development. C. deficiency has never been demonstrated in humans because it is abundant in the diet. D. is necessary to maintain the coenzyme A supply in mitochondria. E. supplementation raises serum homocysteine.
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