Class 11 NEET Biology Body Fluids and Circulation

Option (2) is the correct answer because every 100mL of oxygenated blood can deliver around 5mL of O2 to the tissues under normal physiological conditions.
Option (3), (4) and (1) are incorrect because every 100mL of deoxygenated blood delivers approximately
4mL of CO2 to the alveoli.