On an average, a healthy human breathes ______times/minute.
1. 70-72
2. 20-25
3. 12-16
4. 120-80
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
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