A. Pyrrole rings
B. Vinyl groups
C. Histidine
D. Ferric ions

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Related Mcqs:

  1. Which of the following is correct about breakdown of hemoglobin (Hb)_____________?
    A. Hb→Heme→bilirubin→Urobilinogen B. Heme→Hb→Biliverdin→Urobilinogen C. Hb→Heme→Bilverdin→Uro bilinogen D. Hb→Heme→bilirubin→Urobilinogen→Biliverdin...
  2. At PH 7 the binding of 2,3 DPG to hemoglobin occurs at which site ?
    A. Sulphydryl group B. Carboxy terminal C. Amino terminal D. Histidine...
  3. Hemoglobin is the major buffer in blood, bicarbonate ions diffuse out of erythrocyte into plasma in exchange of_______________?
    A. Potassium B. Phosphate C. Carbonic acid D. Chloride ion...
  4. Infants acquire adult hemoglobin level at_____________?
    A. Birth B. End of 1st year C. Puberty D. 4 years...
  5. The hemoglobin % of a normal newborn is______________?
    A. 8 B. 12 C. 10 D. 30...
  6. Embryonic hemoglobin is composed of________________?
    A. Gamma and beta B. Epsilon and gamma C. Alpha and beta D. Gamma and alpha...
  7. Hemoglobin has______________?
    A. Four polypeptide chains, 2α, 1β,1Υ chain B. Four heme molecules and four polypeptide chains C. Four heme molecules, 2α and 2β chains D. One heme and one globin molecule...
  8. What effect does hyperventilation have on the oxygen binding affinity of hemoglobin ?
    A. P50 and oxygen affinity decrease B. P 50 and oxygen affinity increase C. P 50 decreases and the oxygen affinity increases D. P50 increase and the oxygen affinity decreases...
  9. A patient reports with dyspnoea on slight exertion. He also has multiple petechial spots and spontaneous hemorrhage. His RBC count is less than one lakh/mm3 His hematocrit and hemoglobin is low. Most probable diagnosis is______________?
    A. Pernicious anemia B. Thalassemia C. Aplastic anemia D. Sprue...
  10. Following is non-essential amino acid_______________?
    A. Phenylalanine B. Proline C. Tryptophan D. Threonine...
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