Question

1.What is the partial pressure of oxygen and carbon dioxide in atmospheric air?
a) p02 159 mm Hg, pCO2 0.3 mm Hg b) p02 104 mm Hg, pCO2 40 mm Hg
c) p02 40 mm Hg, PC02 45 mm Hg
d) p02 95 mm Hg, pCO2 40 mm Hg
2.Diffusion membrane is made up of which of the following layers?
a) Thin squamous epithelium of alveoli b ) Basement membrane
c) Endothelium of alveolar capillaries. d) All of these. 3. Which of the following statements is incorrect about transport of gases?
a) About 97 percent of 02 is transported by RBCs in the blood
b) 3 percent of 02 is carried in dissolved state in the plasma
c) 20-25 percent of CO2 is transported by RBCs in the form of carbaminohaemoglobin
d) 70 percent carbon dioxide is carried in dissolved state in plasma. 4.Which of the following factor/s are favourable for the formation of oxyhaemoglobin?
A) High p02, low pCO2. B) Lesser H+ concentration, lower temperature. C) Low p02, high CO2. D) High H+, higher temperature
a) A only. b) A and B
c) B and C
d) C and D
5.Under which conditions, will oxygen dissociation curve move towards the right?
a) Low pO₂
b) High CO2
c) High H+ concentration and higher temperature
d) All of these​

Answer 1

Answer:

Explanation:

1 (a)

2(d)

3(d) . Only 7% co2 is carried in dissolve state in plasma.

4(b)

5(D)