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

Which of the following is a true statement?

1. Oxygen binding with HB is a reversible process

2. Oxygen binding with HB is an irreversible process

3. Hb is not a protein

4. It’s not a pigment

The binding of Hb with oxygen forms

1. Methamoglobin

2. Carbhaminohaemoglobin

3. Oxyhaemoglobin

4. Carbaminohaemoglobin

Each Hb can carry a maximum of ___oxygen molecules.

1. 2

2. 4

3. 8

4. 6

Binding of Oxygen with Hb is primarily related to

1. Partial pressure of O₂

2. Partial pressure of CO₂

3. Hydrogen ion Concentration

4. Temperature

A curve obtained when percentage saturation of Hb with O₂ is plotted against the pO₂ is also called as

1. Association curve

2. Dissociation Curve

3. Sigmoid Curve

4. Both 2 and 3