1
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
The haemoglobin of a human foetus
A
has only 2 protein subunits instead of 4
B
has a higher affinity for oxygen than that of an adult
C
has a lower affinity for oxygen than that of the adult
D
its affinity for oxygen is the same as that of an adult.
2
AIPMT 2009
MCQ (Single Correct Answer)
+4
-1
What is vital capacity of our lungs?
A
Inspiratory reserve volume plus expiratory reserve volume
B
Total lung capacity minus residual volume
C
Inspiratory reserve volum plus tidal volume
D
Total lung capacity minus expiratory reserve volume
3
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
The majority of carbon dioxide produced by our body cells is transported to the lungs as
A
attached to haemoglobin
B
dissolved in the blood
C
as bicarbonates
D
as carbonates.
4
AIPMT 2006
MCQ (Single Correct Answer)
+4
-1
Which one of the following statements is incorrect?
A
The principle of countercurrent flow facilitates efficient respiration in gills of fishes.
B
The residual air in lungs slightly decreases the efficiency of respiration in mammals.
C
The presence of non-respiratory air sacs, increases the efficiency of respiration in birds.
D
In insects, circulating body fluids serve to distribute oxygen to tissues.
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