1. A partial pressure of oxygen in deoxygenated blood is 40 mm Hg
2. The partial pressure of oxygen in oxygenated blood is 95 mm Hg
3. The partial pressure of carbon dioxide in deoxy genated blood is 95 mm Hg
4. The partial pressure of oxygen in the alveolar air is 104 mm Hg
5. The partial pressure of carbon dioxide in the alveolar air is 40 mm Hg
The partial pressure of carbon dioxide in deoxy genated blood is 95 mm Hg
1. The ability to grow
2. A nucleus
3. A two layer boundary
4. Division by pinching in two layers
A nucleus
1. To reduce the surface tension on the alveoli
2. Maintaining the stable size of the alveoli
3. Facilitating lung expansion
4. All of the above
All of the above
1. There is less oxygen at mountains
2. There is more oxygen at the mountains
3. There are no germs in the air in mountain
4. More heat is required to be produced in the body for keeping warm
There is less oxygen at mountains
1. Dissolved in plasma and transported
2. Remains in lungs
3. Attached to cell membranes
4. Inside the mitochondria
5. In peroxisomes
Dissolved in plasma and transported
1. Total lung capacity minus expiratory reserve volume
2. Inspiratory reserve volume plus tidal volume
3. Total lung capacity minus expiratory reserve volume
4. Inspiratory reserve volume plus expiratory reserve volume
Inspiratory reserve volume plus expiratory reserve volume
1. (c) and (d)
2. (a) and (d)
3. (a) and (b)
4. (b) and (c)
(b) and (c)
1. Neural signals from pneumotoxic centre in pons region of brain can increase the duration of inspiration
2. Workers in grinding and stone – breaking industries may suffer from lung fibrosis
3. About 90% of carbon dioxide (CO2) is carried by hemoglobin as carbamino- hemoglobin
4. Cigarette smoking may lead to inflammation of bronchi
Workers in grinding and stone – breaking industries may suffer from lung fibrosis
1. 230 ml
2. 210 ml
3. 190 ml
4. 150 ml
150 ml
1. P, Q, T
2. P, R, S
3. P, Q, S
4. P, R, T
P, Q, S