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Q:

Which of the following is essential to form haemoglobin in blood?

  • 1
    Fats
  • 2
    Iron
  • 3
    Calcium
  • 4
    Protein
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Answer : 2. "Iron"
Explanation :

1. Iron is required for the formation of hemoglobin.

2. Hemoglobin is a part of red blood cells that carries oxygen and removes carbon dioxide (a waste product) from the body.

3. Iron is stored in the body mainly in hemoglobin.

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