Boyle's Law

Q. The rate of diffusion does not depend upon ______________.

1. thickness of the membrane
2. size of particle
3. energy
4. solubility of the gas

Q.

Respiratory gas	Atmospheric air	Alveoli
$O_2$	159	A
$C{O}_2$	0.3	B

The table given shows the partial pressure values (in mm Hg) of oxygen and carbon dioxide in the alveoli in comparison to that in atmospheric air. Identify A and B and choose the correct option accordingly.

1. A-50; B-50
2. A-104; B-40
3. A-40; B-104
4. A-101; B-104

Q.

Why dont alveoli collapse even after forceful expiration?

Q. The partial pressure of oxygen in the alveoli of the lungs is-

1. Less than that of carbon dioxide
2. Equal to that in the blood
3. More than that in the blood
4. Less than that in the blood

Q. The partial pressure of oxygen in the alveoli of the lungs is

1. less than that of carbon dioxide
2. equal to that in the blood
3. more than that in the blood
4. less than that in the blood

Q. Our atmosphere has 21% of the oxygen gas, what will be the partial pressure exerted by this gas?

1. 158 mmHg
2. 159 mmHg
3. 160 mmHg
4. 173 mmHg

Q. Partial pressure of oxygen in the inspired and expired air is respectively.

1. $159$ and $116$mm Hg
2. $158$ and $40$mm Hg
3. $100$ and $95$mm Hg
4. $40$ and $95$mm Hg

Q. Inspiration occurs when there is a negative pressure in the lungs with respect to atmospheric pressure. This negative pressure is achieved when

1. intrapulmonary pressure is less than the atmospheric pressure
2. intrapulmonary pressure is greater than the atmospheric pressure
3. intrapulmonary pressure is equal to the atmospheric pressure
4. intrapleural pressure becomes more than the intra-alveolar pressure.

Q. Between breaths, the intrapleural pressure is approximately .......... mm Hg less than atmospheric pressure.

1. 1
2. 4
3. 8
4. 10