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Haemoglobin F (α2γ2) – It is known as fetal haemoglobin. 2-3% of haemoglobin F is present in adults. It is composed of two alpha and two gamma chains. Fetal haemoglobin has more affinity for oxygen compared to HbA. Q4 What is the normal haemoglobin level?
Oxygen diffuses from the alveoli to the blood because: a. PO2 is higher in the blood. b. PO2 is lower in the blood. c. CO2 is diffusing out of the blood. d. more CO2 is diffusing out of cells into the blood. Which one is greater the oxygen concentration in pu...