Question

During circulation, oxygen combines with haemoglobin to form .

• A. oxyhaemoglobin
• B. carboxyhaemoglobin
• C. carbaminohaemoglobin

Answer 1

The correct option is A oxyhaemoglobin

Air that we inhale ends up in the alveoli of the lungs. From the alveoli, it diffuses to the blood stream. In the blood stream it combines with haemoglobin to form oxyhaemoglobin. This oxygen is taken inside the cells and carbondioxide is released. Carbon dioxide combines with haemoglobin to form carbaminohaemoglobin. This is then brought back to the lungs for exhalation.