Diffusion membrane consists of
1. Squamous epithelium of alveoli
2. endothelium of alveolar capillaries
3. Basement substance between them
4. All of the above
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
How many of the following factors are favourable for the shifting of Oxyhaemoglobin dissociation Curve to the left side
low pO2, high pCO2, more H+ Concentration, Higher temperature, High pO2, Low pCO2, less H+ Concentration, lower temperature.
1. 3
2. 4
3. 5
4. 6
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
More binding of CO2 occurs when pCO2 is _____ and pO2 is ____
1. high, high
2. low, high
3. high, low
4. low, low
pCO2 is high and pO2 is low can be found in
1. alveoli
2. tissues
3. blood
4. heart
In alveoli,
1. pCO2 is high and pO2is low
2. pCO2 is low and pO2 is high
3. pCO2 is low and pO2 low
4. None of the above
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
At tissue sites, partial pressure of CO2 is high due to _______ process.
1. Anabolic
2. catabolic
3. Both A and B
4. Oxidative