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In your own words (and approximately 250 words), explain why adult haemoglobin (HbA) is better suited...

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Biology

  • In your own words (and approximately 250 words), explain whyadult haemoglobin (HbA) is better suited for its job as theoxygen-carrying protein in red blood cells compared with myoglobinand the sickle cell form of haemoglobin (HbS). In addition, howdoes foetal haemoglobin (HbF) compare and why do we have this formof Hb??

Include in your answer:

  • An introduction to haemoglobin (HbA) and the way in which itsstructure underlies its function.
  • The way in which Mb differs from HbA and thus why it isunsuitable for the job HbA does.
  • The way in which HbS differs from HbA, the consequences of thisand thus why it is less suitable for the job HbA does.
  • The way in which HbF differs from HbA and what its functionis.

Answer & Explanation Solved by verified expert
4.4 Ratings (829 Votes)
Hemoglobin is contained in red blood cells which efficiently carries oxygen from the lungs to the tissues of the body It also helps in the transportation of carbondioxide and hydrogen ions back to the lungs It consists of four subunits each with a cofactor called heme group that has an iron atom at the centreThe iron is the main component that actually binds to oxygen thus each hemoglobin molecule is able to carry four molecules of oxygen Cooperation among the four subunits of the hemoglobin molecule is necessary for the efficient transportation of oxygen The four subunits atcually bind to oxygen cooperatively the binding of oxygen to one site of the four subunits will increase the likelihood of the remaining sites to bind with oxygen as well It is a protein that is used to carry oxygen through the bloodstream from    See Answer
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