Question Detail
Question
The formation of haem in haemoglobin requires which essential mineral salt?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Haemoglobin is an iron-containing metalloprotein in red blood cells that transports oxygen. The haem group, which binds oxygen, contains an iron atom at its center.
Hint
Think about the element that gives blood its red color and its role in oxygen transport.