Iron is complexed in haemoglobin to_______________?

Related Mcqs:

1. False statement about haemoglobin structure________________?

   A. Hb has 2 polypeptide chains
   B. Iron is present in ferrous state
   C. Hb structurally similar to myoglobin
   D. Ferrous ions are in porphyrin rings

2. Heme in haemoglobin is____________?

   A. Between Helix C and D
   B. Surrounded by non polar environment
   C. Bonded to E7 histidine
   D. Protoporophyrin IX

3. Both beta chains of haemoglobin are abnormal in_________________?

   A. Heterozygous sickle cell trait
   B. Thalassemia major
   C. Homozygous sickle cell anemia
   D. Megaloblastic anemia

4. Normal adult haemoglobin contains________________?

   A. One alpha chain and one beta chain
   B. One alpha chains and two beta chains
   C. One beta chains and two alpha chains
   D. Two alpha chains and two beta chains

5. Increased levels of haemoglobin A2 is characteristic of________________?

   A. Sickle cell trait
   B. b-thalassaemia crait
   C. Glucose-6 phosphate dehydrogenase deficiency
   D. a-Thalassamia

6. Austenite is an alloy of iron of and carbon with the iron in______________?

   A. Alpha form
   B. Beta form
   C. Gamma form
   D. None of the above

7. Increased iron binding capacity and decreased serum iron is seen in which anemia________________?

   A. Iron deficiency
   B. Aplastic
   C. Sickle cell
   D. Chronic infections

8. Mutation in the oxidative enzymes (peroxisomes) could lead to_______________?

   A. Zellweger’s syndrome
   B. Gaucher’s disease
   C. Epidermolysis bullosa
   D. Leber’s neuropathy

9. The vitamin that facilitates iron absorption____________?

   A. Folic acid
   B. Ascorbic acid
   C. Biotin
   D. Para amino benzoic acid

10. Schuffner’s dots are seen in infection due to_______________?

    A. Plasmodium falciparum
    B. Plasmodium vivax
    C. Plasmodium malariae
    D. Plasmodium ovale