Which of the following statements concerning iron deficiency in humans is false ?
A) Iron requires a carrier molecule for absorption and transport.
B) Iron can only be absorbed in the iron (III) state.
C) Iron often forms insoluble complexes with other food substances.
D) Other ions may compete with iron for uptake into the body.

Question

Quizplus · Accepted Answer

Iron is primarily absorbed in the duodenum and upper jejunum of the small intestine, and it is absorbed more efficiently in its ferrous (Fe2+) state rather than the ferric (Fe3+) state. Vitamin C (ascorbic acid) can reduce ferric iron to ferrous iron in the stomach, enhancing its absorption.

Which of the Following Statements Concerning Iron Deficiency in Humans