Question

The metal present in hemoglobin is

• A. Magnesium
• B. Aluminum
• C. Iron
• D. Copper

Answer 1

The correct option is C

Iron

The correct option is C

Explanation of correct option

1. Hemoglobin is the protein responsible for the carrying of oxygen to the cells and carbon dioxide from the cells.
2. Iron is the metal present in hemoglobin.
3. The heme group (a component of the hemoglobin protein) is a metal complex, with iron as the central metal atom, that can bind or release molecular oxygen.
4. Hemoglobin contains 0.33% of iron by weight.

Final answer: The metal present in hemoglobin is iron.