Read the following statements:
i. The approximate ratio of residual volume and total lung capacity is 1 : 5
ii. Haldane effect describes the dissociation of CO2 from Hb and facilitates its release into alveoli due to oxygenation of Hb
iii. Maximum CO2 is carried in the blood as NaHCO3
iv. When a plain dweller move to high altitudes (3,500 m or more), he/she will have increase in RBC production and decreased breathing rate
v. Under certain conditions, the P50 value of Hb rises, due to this the affinity of Hb of combining with O2 rises.
How many of the above statements are correct?
1. Two
2. Three
3. One
4. Four