Multiple choice

Which of the following statements are incorrect?

  1. All transferrins are lipoproteins.
  2. The transport of iron from storage sites in cellular ferritin or hemosiderin occurs via serum-transport protein transferrin.
  3. Each transferrin binds with only one iron atom.
  4. The protein coat of ferritin is a hollow sphere of 24 polypeptide chains.

  1. 1 and 2

  2. 1 and 3

  3. 1 and 4

  4. 2 and 3

  5. 3 and 4
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

This option is correct because all transferrins are glycoproteins and have a high molecular weight, they bind with two iron atoms.

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