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A haemoglobin molecule is composed of four protein (globin) chains each attached to an iron-containing haem group - VCE - SSCE Biology - Question 11 - 2007 - Paper 1
Question 11
A haemoglobin molecule is composed of four protein (globin) chains each attached to an iron-containing haem group. Two are identical alpha chains and two are identic... show full transcript
Worked Solution & Example Answer:A haemoglobin molecule is composed of four protein (globin) chains each attached to an iron-containing haem group - VCE - SSCE Biology - Question 11 - 2007 - Paper 1
Step 1
A haemoglobin molecule would be classified as having a
Answer
The correct classification for a haemoglobin molecule is D. quaternary protein structure. This is due to the fact that quaternary structure refers to the arrangement of multiple polypeptide chains into a single functional complex, which is exemplified by the haemoglobin molecule's assembly of two alpha and two beta chains.