Podcast
Questions and Answers
Where is iron predominantly found in the body?
Where is iron predominantly found in the body?
- Blood and bone marrow
- Leafy vegetables and cereals
- Liver, bone marrow, and muscle (correct)
- Liver and meat cooking in iron utensils
Which form of iron is absorbed in the body?
Which form of iron is absorbed in the body?
- Heme iron
- Ferric (Fe+++)
- Oxidized iron
- Ferrous (Fe++) (correct)
What factor increases the absorption of iron?
What factor increases the absorption of iron?
- Ascorbic acid (correct)
- Phytic acid
- Oxalic acid
- Tea and coffee
Which of the following inhibits the absorption of iron?
Which of the following inhibits the absorption of iron?
Where is iron absorbed from in the body?
Where is iron absorbed from in the body?
How is iron regulated at the absorption level?
How is iron regulated at the absorption level?
What substance is responsible for converting ferric iron into ferrous form in the intestinal lumen?
What substance is responsible for converting ferric iron into ferrous form in the intestinal lumen?
Which protein binds iron in the lumen and transports it into the mucosal cell?
Which protein binds iron in the lumen and transports it into the mucosal cell?
What is the temporary storage form of iron in the mucosal cell?
What is the temporary storage form of iron in the mucosal cell?
Which protein converts ferrous iron to ferric form in the plasma?
Which protein converts ferrous iron to ferric form in the plasma?
According to the mucosal block theory, how is iron absorption regulated?
According to the mucosal block theory, how is iron absorption regulated?
What signals the mucosal cell to increase iron absorption when storage iron is decreased?
What signals the mucosal cell to increase iron absorption when storage iron is decreased?
At what level does iron uptake by cells take place when iron concentration is high?
At what level does iron uptake by cells take place when iron concentration is high?
How is transferrin formed in the blood?
How is transferrin formed in the blood?
What does transferrin transport to various tissues and organs?
What does transferrin transport to various tissues and organs?
What binds two transferrin molecules in cells?
What binds two transferrin molecules in cells?
