Volume of air which does not participate in gaseous exchange is
(1)Residual volume

(2)Dead space air

(3)Tidal volume

(4)Both A and B

The volume of air expired normally after forceful inspiration
1. TV+ IRV
2. TV+ERV
3. TV
4. None of these

The volume of air expired forcefully after normal inspiration
1. TV+ IRV
2.TV+ERV
3.TV
4. None of these

The volume of air expired forcefully after forceful inspiration
(1)TV+ IRV

(2)TV+ERV+IRV

(3)TV+ERV+IRV+RV

(4)None of these

The partial pressure of CO₂ is minimum in the

1. atmospheric air

2. Alveoli

3. Deoxygenated blood

4. Oxygenated blood

Diffusion membrane consists of

1. Squamous epithelium of alveoli

2. endothelium of alveolar capillaries

3. Basement substance between them

4. All of the above

What percentage of Carbon dioxide is transported by RBCs

1. 7

2. 20-25

3. 70

4. 97

What percentage of Carbon dioxide is transported in a dissolved state through plasma

1. 7

2. 20-25

3. 70

4. 97

What percentage of oxygen molecule is transported in a dissolved state through plasma

1. 3

2. 20-25

3. 70

4. 97

Which of the following is true for transport of gases

1. Maximum amount of O₂ is transported by RBCs

2. Maximum amount of CO₂ is transported by Plasma as Bicarbonates

3. Plasma transports both CO₂ and O₂

4. All of the above