Q. How many molecules of oxygen can bind to a molecule of haemoglobin?
A) One
B) Two
C) Three
D) Four
Explanation
Each haemoglobin molecule has four iron atoms, each of which can combine with a molecule of oxygen through coordinate bond. Hence, total four molecules of oxygen can bind (or combine) with one molecule of haemoglobin.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.