Question

$C{O}_2$ transported as bicarbonate form is about:

• A. 0.9 mL
• B. 3.8 mL
• C. 0.27 mL
• D. 2.7 mL

Answer 1

The correct option is A 0.9 mL

Most carbon dioxide in the human blood transport system is carried in the form of bicarbonate. This is due to reason because blood flows through the tissues, carbon dioxide diffuses into red blood cells, where it is converted into bicarbonate. Additionally, a hydrogen ion is released from haemoglobin, thus allowing oxygen to bind to haemoglobin as blood flows through the lungs. This carbon dioxide is carried in form of bicarbonate in 0.9 mL concentration.

So the correct option is '0.9 mL'.