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Breathing and Exchange of Gases

Book Chosen

Biology

Subject Chosen

Biology

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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 True or False :

A.

Expiration leaves a small residual volume in the lungs.

B.

The lungs are completely emptied and refilled with fresh air during breathing.

C.

The right lung is larger than the left lung in human beings.

D.

The energy carrying compound in the living cell is ATP.

E.

 Most of the oxygen and carbon dioxide get dissolved in the plasma and are carried in solution.

F.

The affinity of haemoglobin for carbon monoxide is more than its affinity for oxygen.

G.

The “mountain sickness” in persons climbing to high altitudes without the aid of oxygen cylinders is due to arterial hypoxia.

H.

The regulatory centre for respiration is situated in cerebral cortex.

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

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

20 - 25 times
414 Views

Oxygen is carried by haemoglobin as?

Oxyhaemoglobin.
415 Views

What is the partial pressure of oxygen in  oxygenated blood ?

95 mm Hg
702 Views

70% of carbondioxide is transported as ?

Bicarbonate
360 Views

Name the cavity having lungs.

Thoracic cavity.
448 Views