FDNTR 219 Ch. 13-16 Exam Questions with
Answers (100% Correct Answers)
1. What protein carries iron in the bloodstream? Answer: transferrin
2. What iron containing compound carries oxygen in the bloodstream?
Answer: hemoglobin
3. What protein carries oxygen in the muscle cells? Answer: myoglobin
4. What is the average lifespan of the RBC? Answer: 120 days (4 months)
5. What is the major storage form of iron? Answer: ferritin
6. What factors enhance the absorption of iron? Answer: when iron stores are
depleted, with increased body need -pregnancy, with rapid growth and
development
7. What foods reduce the absorption of iron? Answer: phytates- in legumes,
whole grains, rice, vegetable proteins- in soybeans. legumes, nuts, calcium- in
milk, tannic acid- in coffee and tea
8. What is the function of MFP factor and what foods is it found in? Answer:
Enhances absorption of non-heme iron from foods eaten at the same meal.
found in meat, fish, poultry
9. Approximately what percentage of iron is normally absorbed overall?
Answer: about 18% in mixed diets, about 10% in vegetarian diets
10. Know the process of iron absorption and recycling. Answer: -Transferrin
carries iron in the blood
-Bone marrow incorporates iron into hemoglobin of RBC and stores excess iron
in ferritin and hemosiderin
-Iron-containing hemoglobin in RBC carries oxygen
, 2
-Liver and spleen dismantle RBC, packages iron into transferrin, and stores
excess iron in ferritin and hemosiderin.
11. What is the major cause of iron deficiency? Answer: low iron stores
12. Who is most susceptible to iron deficiency? Answer: 10% of toddlers,
adolescent girls, women of childbearing age
13. What deficiency would a low level of hemoglobin indicate? Answer:
Anemia deficiency
14. What foods have iron added to them in fortification? Answer: -Whole
grains
-Iron enriched flour and grains
15. What binds with zinc and limits its bioavailability? Answer: fiber and
phytates
16. What transports zinc? Answer: albumin and transferrin
17. Zinc deficiency may result in what conditions? Answer: -Growth
retardation
-Arrested sexual maturation
-Diarrhea
-Impaired immune response
-Damage central nervous system and brain, poor motor development and
cognitive performance
-Vitamin A deficiency
-Altered taste and poor wound healing
Answers (100% Correct Answers)
1. What protein carries iron in the bloodstream? Answer: transferrin
2. What iron containing compound carries oxygen in the bloodstream?
Answer: hemoglobin
3. What protein carries oxygen in the muscle cells? Answer: myoglobin
4. What is the average lifespan of the RBC? Answer: 120 days (4 months)
5. What is the major storage form of iron? Answer: ferritin
6. What factors enhance the absorption of iron? Answer: when iron stores are
depleted, with increased body need -pregnancy, with rapid growth and
development
7. What foods reduce the absorption of iron? Answer: phytates- in legumes,
whole grains, rice, vegetable proteins- in soybeans. legumes, nuts, calcium- in
milk, tannic acid- in coffee and tea
8. What is the function of MFP factor and what foods is it found in? Answer:
Enhances absorption of non-heme iron from foods eaten at the same meal.
found in meat, fish, poultry
9. Approximately what percentage of iron is normally absorbed overall?
Answer: about 18% in mixed diets, about 10% in vegetarian diets
10. Know the process of iron absorption and recycling. Answer: -Transferrin
carries iron in the blood
-Bone marrow incorporates iron into hemoglobin of RBC and stores excess iron
in ferritin and hemosiderin
-Iron-containing hemoglobin in RBC carries oxygen
, 2
-Liver and spleen dismantle RBC, packages iron into transferrin, and stores
excess iron in ferritin and hemosiderin.
11. What is the major cause of iron deficiency? Answer: low iron stores
12. Who is most susceptible to iron deficiency? Answer: 10% of toddlers,
adolescent girls, women of childbearing age
13. What deficiency would a low level of hemoglobin indicate? Answer:
Anemia deficiency
14. What foods have iron added to them in fortification? Answer: -Whole
grains
-Iron enriched flour and grains
15. What binds with zinc and limits its bioavailability? Answer: fiber and
phytates
16. What transports zinc? Answer: albumin and transferrin
17. Zinc deficiency may result in what conditions? Answer: -Growth
retardation
-Arrested sexual maturation
-Diarrhea
-Impaired immune response
-Damage central nervous system and brain, poor motor development and
cognitive performance
-Vitamin A deficiency
-Altered taste and poor wound healing
