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Iron Absorption

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Questions and Answers

Which form of iron is predominantly absorbed in the duodenum and upper jejunum?

Ferritin form (Fe)

Ferric form (Fe+++)

Ferrous sulfate form (FeSO4)

Ferrous form (Fe++) (correct)

What are the main factors that affect the absorption of dietary iron?

Total iron content in the diet

The rate of erythropoiesis

The oxygen content of the blood

All of the above (correct)

What happens to iron absorption in people who are iron deficient?

Iron absorption depends on other factors

Iron absorption increases (correct)

Iron absorption remains the same

Iron absorption decreases

Which vitamin enhances iron absorption?

Vitamin C (B) Signup and view all the answers

Which of the following compounds inhibits the absorption of iron?

Phytates (B) Signup and view all the answers

Which of the following substances favors the reduction of ferric iron to ferrous iron?

Gastric HCL (A) Signup and view all the answers

Which of the following beverages contains a compound that decreases the solubility of iron?

Tea (B) Signup and view all the answers