Each Hb can carry a maximum of ___oxygen molecules.

(1)2

(2)4

(3)8

(4)6

Which of the following is true
(1)Gills are used by most of the aquatic animals

(2)lungs are used by most of the terrestrial animals

(3)Mammals have a well developed respiratory system

(4)All of the above

The red coloured, Fe Containing pigment present in the Erythrocytes is

1. Haemoglobin

2. Myoglobin

3. Globin

4. Albumin

The binding of Hb with Carbon dioxide forms

1. Methamoglobin

2. Carbamino-haemoglobin

3. Oxyhaemoglobin

4. none of these

Carbonic anhydrase plays an important role in the transport of carbon dioxide in

1.  Leucocytes

2.  Thrombocytes

3.  Erythrocytes

4.  Platelets

The formation of Carbonic acid from Carbon dioxide and water has catalyzed the enzyme

1. Carbonic anhydrase

2. Carbonic anhydride

3. Carbonic hydrase

4. Both A and C

The solubility of carbon dioxide is about _____ times higher than that of oxygen across the respiratory membrane.

1. 20-25

2. 25-50

3. 125-150

4. 200-250

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

Mark the incorrect statement regarding the transport of gas.

Approximately seventy percent of carbon dioxide absorbed by the blood will be

transported to the lungs

1. as bicarbonate ions

2. in the form of dissolved gas molecules

3. by binding to RBC

4. as carbamino-haemoglobin