Question

Why is CO poisonous for man

A. CO affects the nerves of the lungs
B. CO affects the diaphragm and intercostal muscles
C. CO reacts with oxygen reducing percentage of O2 in air
D. Haemoglobin combines with CO instead O2 and th product cannot dissociate  
Answer :   Haemoglobin combines with CO instead O2 and th product cannot dissociate

Releted MCQ Question on
Zoology >> Breathing and Exchange of Gases

Releted Question 1

Select the correct events that occur during inspiration.
(i) Contraction of diaphragm
(ii) Contraction of external inter-costal muscles
(iii) Pulmonary volume decreases
(iv) Intra pulmonary pressure increases

A. (iii) and (iv)
B. (i), (ii) and (iv)
C. Only (iv)
D. (i) and (ii)
Releted Question 2

Select the correct statement.

A. Expiration is initiated due to contraction of diaphragm
B. Expiration occurs due to external intercostal muscles
C. Intrapulmonary pressure is lower than the atmospheric pressure during inspiration
D. Inspiration occurs when atmospheric pressure is less than intrapulmonary pressure
Releted Question 3

The maximum volume of air a person can breathe in after a forced expiration is known as :

A. Total lung capacity
B. Expiratory capacity
C. Vital capacity
D. Inspiratory capacity
Releted Question 4

Tidal volume and Expiratory reserve volume of an athlete is $$500\,mL$$  and $$1000\,mL$$  respectively. What will be his Expiratory capacity if the residual volume is $$1200\, mL?$$

A. $$1500\,mL$$
B. $$1700\,mL$$
C. $$2200\,mL$$
D. $$2700\,mL$$

Practice More Releted MCQ Question on
Breathing and Exchange of Gases


Practice More MCQ Question on Biology Section