Zigya Logo

Chapter Chosen

Breathing and Exchange of Gases

Book Chosen

Biology

Subject Chosen

Biology

Book Store

Download books and chapters from book store.
Currently only available for.
CBSE Gujarat Board Haryana Board

Previous Year Papers

Download the PDF Question Papers Free for off line practice and view the Solutions online.
Currently only available for.
Class 10 Class 12

Select rue and false :

A.

Major amount of carbon dioxide (CO2) from the tissues is transported to the lungs in the form of bicarbonates.

B.

The condition in which the body suffers from acute oxygen shortage is called hypoxia.

C.

The largest quantity of air that can be expired after a maximum inspiratory effort is called the tidal volume of the lungs.

D.

Vital capacity represents the maximum capacity to ventilate the lungs.

E.

Oxyhaemoglobin can hold much less carbon dioxide (CO2) in the form of carbaminohaemoglobin than what deoxyhaemo-globin can.

F.

A rise in PCO2 increases the affinity of oxygen to haemoglobin.

G.

 External respiration may be called breathing.

H.

Hydra respires by its general body surface.

A. TRUE
B. TRUE
C. FALSE
D. TRUE
E. TRUE
F. FALSE
G. TRUE
H. TRUE
 
 
182 Views

By what amount the solubility of carbondioxide is more than the solubility of oxygen?

20 - 25 times
414 Views

70% of carbondioxide is transported as ?

Bicarbonate
360 Views

What is the partial pressure of oxygen in  oxygenated blood ?

95 mm Hg
702 Views

Name the cavity having lungs.

Thoracic cavity.
448 Views

Oxygen is carried by haemoglobin as?

Oxyhaemoglobin.
415 Views