Question

Each 100 ml of human arterial blood carries �P� ml of $O_2$ and �Q� ml of $CO_2$ whereas each 100 ml of venous blood carries �R� ml of $O_2$ and �S� ml of $CO_2$. Choose the values of P, Q, R and S.

• A. P = 48 ml, Q = 19-20 ml, R = 52 ml, S = 14-15 ml
• B. P = 19-20 ml, Q = 48 ml, R = 14-15 ml, S = 52 ml
• C. P = 14-15 ml, Q = 52 ml, R = 19-20 ml, S = 48 ml
• D. P = 52 ml, Q = 14-15 ml, R = 48 ml, S = 19-20 ml

Answer 1

Answer: (B)

P = 19-20 ml, Q = 48 ml, R = 14-15 ml, S = 52 ml

Answer 2

In oxygenated and deoxygenated blood the quantity of oxygen is approx 20 ml and 15 ml per 100 ml of blood and the level of $CO_2$ is 48 ml and 52 ml per 100 ml of blood respectively.