1. At high altitude, RBC of human blood will

A Increase
B Decrease in number
C Decrease in size
D Increase in size
Answer :   Increase
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2. Asthma is a respiratory disease caused due to

A Infection of trachea
B Infection of lungs
C Bleesing into pleural cavity
D Spasm in bronchial muscles
Answer :   Spasm in bronchial muscles
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3. Breathing by ribs is more pronounced in

A Male
B Female
C Pregnant female
D None of the above
Answer :   Pregnant female
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4. Carbon monoxide prevents transport of oxygen by

A Forming stable compound with haemoglobin
B Destroying haemoglobin
C Forming carbon dioxide with oxygen
D None of the above
Answer :   Forming stable compound with haemoglobin
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5. Carbon dioxide is transported from tissues to respiratory surface by only

A plasma and erythrocytes
B plasma
C erythrocytes
D erythrocytes and leucocytes
Answer :   plasma and erythrocytes
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6. Maximum expiration after full inspiration is called

A Vital capacity
B Lung capacity
C Tidal volume
D Residual volume
Answer :   Vital capacity
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7. Haldane effect is due to

A CO2
B Lactic acid
C PH
D Oxyheamoglobin
Answer :   Oxyheamoglobin
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8. Exchange of gases in lung alveoli occurs Through

A Active transport
B Osmosis
C Simple diffusion
D Passive transport
Answer :   Simple diffusion
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9. One of the following is a difference between pulmonary respiration of frog and human

A Diaphragm and ribs play role in breathing
B Lungs are respiratory organs
C Respiration occurs due to pressure gradient
D Tunica interna, tunica externa & tunica Interna
Answer :   Diaphragm and ribs play role in breathing
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10. Under normal condition 100 ml blood carry

A 4 ml CO2
B 10 ml CO2
C 1.34 ml CO2
D 30 ml CO2
Answer :   4 ml CO2
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