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Describe the movement of iron from plant vs. animal foods from the intestinal lumen onto transferrin...

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Biology

  1. Describe the movement of iron from plant vs. animalfoods from the intestinal lumen onto transferrin in theblood.

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Ans Dietary iron is found in two basic forms either ashaemfound in meat and meat productsor nonhaem ironpresent incereals vegetables pulses beans fruits etc in a numberof forms ranging from simple iron oxides and salts to more complexorganic chelatesBoth haem and nonhaem iron are taken up in this proximal regionof the small intestine though their transport across the apicalmembrane of the enterocytes occurs through totally independentpathwaysPlant food Iron movement The majority ofdietary nonhaem iron enters the gastrointestinal tract in theferric formHowever Fe3 is thought to be essentiallynonbioavailable see below and therefore it must first beconverted to    See Answer
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