Breathing and Exchange of Gases NEET PYQs

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?

Match List I with List II:

List-I	List-II
(A)Expiratory capacity	(I)Expiratory reserve volume + Tidal volume + Inspiratory reserve volume
(B)Functional residual capacity	(II)Tidal volume + Expiratory reserve volume
(C)Vital capacity	(III)Tidal volume + Inspiratory reserve volume
(D)Inspiratory capacity	(IV)Expiratory reserve volume + Residual volume

Choose the correct answer from the options given below:

Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?

In water, frogs respire using ________.

In humans, respiration occurs in the following steps. Arrange these steps in the correct order.

(A) Diffusion of O₂ and CO₂ between blood and tissues.
(B) Diffusion of O₂ and CO₂ across the alveolar membrane.
(C) Pulmonary ventilation by which atmospheric air is drawn in and CO₂-rich alveolar air is released out.
(D) Cellular respiration.
(E) Transport of gases by the blood.

Choose the correct answer from the options given below:

Match List-I with List-II.

List-I (Respiratory Volume)	List-II (Capacity)
A. ERV (Expiratory Reserve Volume)	I. 2500–3000 mL
B. RV (Residual Volume)	II. 500 mL
C. IRV (Inspiratory Reserve Volume)	III. 1000–1100 mL
D. TV (Tidal Volume)	IV. 1100–1200 mL