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Iron Absorption Quiz
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Iron Absorption Quiz

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Questions and Answers

What is the role of ascorbic acid in the absorption of non-heme iron?

  • It reduces Fe+3 to Fe+2 by apical enterocyte reductase enzyme (correct)
  • It binds to the iron to enhance its absorption
  • It inhibits the absorption of iron
  • It releases the iron from food binding sites

    • Which form of iron must enterocytes absorb?

  • Iron is not absorbed by enterocytes
  • Both ferric and ferrous forms
  • Ferric (Fe+3)
  • Ferrous (Fe+2) (correct)

    • What substance found in tea and coffee can inhibit iron absorption from non-heme and uncooked heme sources?

  • Innate (correct)
  • Ferric form of iron
  • Ascorbic acid
  • Enterocytes

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