1
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.
2
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
When CO2 concentration in blood increases breathing becomes
A
shallower and slow
B
there is no effect on breathing
C
slow and deep
D
faster and deeper
3
AIPMT 2004
MCQ (Single Correct Answer)
+4
-1
Blood analysis of a patient reveals an unusually high quantity of carboxyhaemoglobin content. Which of the following conclusions is most likely to be correct?
The patient has been inhaling polluted air containing unusually high content of
A
carbon disulphide
B
chloroform
C
carbon dioxide
D
carbon monoxide.

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