Multiple choice

Which of the following statements are false?

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

Select the correct answer using codes given below:

  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

All transferrins are glycoproteins. Although transferrins have a high molecular weight, they bind only two iron atoms.

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