Multiple choice

Match the following Fe containing proteins with their functions and oxidation state of Fe.

   
Fe containing protein
Function
Oxidation state of Fe
P. Hemoglobin i. Plasma O2 transport a. 2
Q. Myoglobin ii. Muscle O2 storage b. 3
R. Transferrin iii. Plasma Fe transport
S. Catalase iv. H2O2 metabolism

  1. P - ii - a, Q - iv - b, R - i - b, S - iii - b

  2. P - iii - a, Q - iv - a, R - ii - b, S - i - b

  3. P - i - a, Q - ii - a, R - iii - b, S - iv - a

  4. P - ii - b, Q - iii - b, R - iv - a, S - i - a

  5. P - i - b, Q - iii - b, R - ii - a, S - iv - b
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Hemoglobin is a plasma O2 transport protein. Oxidation number of Fe in hemoglobin is 2. Myoglobin is a muscle O2 storage protein, Oxidation number of Fe in myoglobin is 2. Transferrin is a plasma Fe transport protein. Oxidation number of Fe in transferrin is 3. Catalase is an enzyme which catalyzes H2O2 metabolism. Oxidation number of Fe in catalase is 2.

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