Class XI · Biology practice

Breathing and Exchange of Gases PYQs

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16 questions in this collection · Page 2 of 2

Question 11 of 16

🟢 NEET 2019 📘 CLASS XI

Breathing And Exchange Of Gases

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?

AI-generated explanation. Check against your textbook.

Explanation:

Expiratory capacity (EC) is the total amount of air that can be expired after a normal breath, i.e., EC = Tidal Volume (TV) + Expiratory Reserve Volume (ERV). Here TV = 500 mL and ERV = 1000 mL, so EC = 500 + 1000 = 1500 mL. Residual Volume is not used in EC calculation.

🧠 Did You Know?

EC does not include RV; it only sums the air that can be forcefully expired after a normal breath.

💡 NCERT Memory Line:

EC = TV + ERV; TLC = IRV + TV + ERV + RV; VC = TV + IRV + ERV.

Question 12 of 16

🟢 NEET 2024 📘 CLASS XI

Breathing And Exchange Of Gases

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

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Question 13 of 16

🟢 NEET 2024 📘 CLASS XI

Breathing And Exchange Of Gases

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

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Question 14 of 16

🟢 Re NEET 2026 📘 CLASS XI

Breathing And Exchange Of Gases

In water, frogs respire using ________.

During aquatic life frogs mainly perform cutaneous respiration through their moist skin.

Question 15 of 16

🟢 NEET 2026 📘 CLASS XI

Breathing And Exchange Of Gases

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:

Respiration begins with pulmonary ventilation, followed by exchange of gases across the alveolar membrane, transport by blood, exchange between blood and tissues, and finally cellular respiration.

Question 16 of 16

🟢 NEET 2026 📘 CLASS XI

Breathing And Exchange Of Gases

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

ERV is about 1000–1100 mL, RV is about 1100–1200 mL, IRV is about 2500–3000 mL and TV is about 500 mL in a healthy adult.

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