
Consider the following statements and select the option which includes all the correct ones:-
(a) Partial pressures of and in Alveolar air are 104 mmHg and 40 mm Hg, respectively
(b) Partial pressures of and in deoxygenated blood are 40 mmHg and 45 mm Hg, respectively
(c) Partial pressures of and in oxygenated blood are 95 mmHg and 40 mm Hg, respectively
(d) Partial pressures of and in Atmospheric air are 40 mmHg and 46 mm Hg, respectively

Important Questions on Breathing and Respiration



Select the favourable conditions required for the formation of oxyhaemoglobin at the alveoli.


In the given graph curves and represent the relation between partial pressure of oxygen and saturation of haemoglobin with oxygen. If curve represents the condition of blood in a regular artery then please select the correct statement from below.

Study the following forms of transport of respiratory gases
A) as bicarbonates
B) through plasma
C) as carbamino compounds
D) through
E) in a dissolved state
Arrange the above in sequence in ascending order based on their percentages.




Match the following?
List I | List II | ||
i) | of alveoli lungs | a) | 40 mmHg |
ii) | of atmosphenc air | b) | 95 mmHg |
iii) | of deoxygenated blood | c) | 104 mmHg |
iv) | of oxygenated blood | d) | 159 mmHg |


Study the following oxygen-haemoglobin dissociation curve which explains the effect of pH on the saturation of haemoglobin with oxygen. Find out an option that gives the correct descending order of pH for and








