Multiple choice

Which of the following is/are required for the synthesis of haemoglobin?

  1. Methaemoglobin

  2. Bilirubin

  3. Succinyl CoA and glycine

  4. Oxyhaemoglobin

  5. Biliverdin
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C Correct answer
Explanation

These compounds are synthesised in normoblastic stage of developing red blood cells. Two molecules of succinyl CoA and two molecules of glycine combine to form a pyrolle ring. Four pyrolles combine together to form protoporphyrin IX. Protoporphyrin IX combines with iron and polypeptide chain to form haemoglobin chain. Four such haemoglobin chains make up haemoglobin molecule.

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