Haemoglobin is made of

  1. one polypeptide and one haem group
  2. four identical chains without haem
  3. three polypeptides in a triple helix
  4. two α-globin and two β-globin chains, each with a haem group
Answer

D) two α-globin and two β-globin chains, each with a haem group

Haemoglobin has quaternary structure. AS & A Level Biology · Topic 2 Biological Molecules · 2.3 Proteins

Biology MCQ · More A Level Biology: Biological molecules MCQs · Practise