Entry Test MCQ :: Gaseous Exchange

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21.

During rest the breathing occurs rhythmically at the frequency of ______ times per minute in human

A.	16-30	B.	15-20
C.	5?10	D.	6?12

22.

The maximum amount of oxygen which normal human blood absorbs and carries at sea level is _____ per 100 ml of blood.

A.	10 ml	B.	20 ml
C.	30 ml	D.	40 ml

23.

Haemoglobin can be almost completely oxygenated by an oxygen pressure of ____ of mercury.

A.	10 mm	B.	60 mm
C.	10 cm	D.	100mm

24.

Important factors which affect the capacity of haemoglobin to combine with oxygen is

A.	Temperature	B.	Carbon dioxide
C.	pH	D.	All of these

25.

The increase in pH of blood has _____ effect on the oxygen carrying capacity of haemogolobin

A.	plus ve	B.	? ve
C.	No	D.	All of these

26.

% age of CO2 carried as carboxyhaemoglobin is

A.	5%	B.	70%
C.	20%	D.	10%

27.

Arterial blood contains ______ of CO2 per 100 ml of blood

A.	54 ml	B.	60 ml
C.	64 ml	D.	50 ml

28.

More than ______ compounds of tar of tobacco smoke are involved to cause cancer

A.	5	B.	90
C.	15	D.	10

29.

A disease of longs in which inside of the lungs is damaged resulting in cough and fever

A.	Lung cancer	B.	Asthma
C.	Emphysema	D.	Pulmonary tuberculosis

30.

Of the following, which one is a contagious disease?

A.	Tuberculosis	B.	Lungs cancer
C.	Asthma	D.	Emphysema