Biology MCQs

Biology

Respiration


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#9

The mechanical process of taking the air in and out out of the lungs is called

A)  Respiration

B)  Inspiration

C)  Expiration

D)  Breathing

Answer:   D
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#10

Emphysena often leads to

A)  Asthma

B)  Heart Diseases

C)  Bronchitis

D)  Lung cancer

Answer:   B
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#11

The rate and depth of respiration increases when

A)  O2 conc. increases

B)  CO2 conc.Increases

C)  Bicarbonate conc. increases

D)  Bicarbonate conc. decreases

Answer:   B
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#12

The amount of air that moves in and out of the lungs with each inspiration and expiration is called

A)  Residual volume

B)  Tidal volume

C)  Vital capacity

D)  Lung volume

Answer:   B
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#13

Which one of the following prevents the trachea from collapsing

A)  Muscels

B)  Diaphragm

C)  Ribs

D)  Cartilagginous rings

Answer:   D
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#14

During the process of transport of CO2 which phenomenon occurs between RBC and plasma

A)  Osmosis

B)  Adsorption

C)  Chloride shift

D)  absorption

Answer:   C
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#15

Molecules attached to the diaphragm contract during inspiration to make it

A)  Flat

B)  Dome - shaped

C)  Concave

D)  Rotate

Answer:   A
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#16

In human beings the number of lobes in the right and left lungs is

A)  2 and 3

B)  2 and 2

C)  3 and 2

D)  3 and 3

Answer:   C
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