Oxygen-binding Proteins

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Questions and Answers

Which of the following accurately describes the structure of this molecule?

  • It contains a ring structure without iron.
  • It consists of multiple polypeptide chains.
  • It is made up of a single polypeptide chain and an iron-containing ring structure. (correct)
  • It can bind with multiple molecules of oxygen.

What is the role of the iron in this molecule?

  • It helps stabilize the polypeptide chain.
  • It forms a bond with multiple oxygen molecules.
  • It provides structural support to the molecule.
  • It binds with one molecule of oxygen. (correct)

How many polypeptide chains are present in this molecule?

  • One (correct)
  • Cannot be determined
  • Multiple
  • None

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