Breathing and Exchange of Gases Previous Year Questions — NEET Biology

3 past-year Breathing and Exchange of Gases questions from NEET (Biology).

Q146 (2024)

Match List-I with List-II. <div style="overflow-x: auto; margin: 1rem 0;"><table style="width: 100%; border-collapse: collapse; text-align: left; font-size: 14px;"><thead><tr><th style="border: 1px solid #888; padding: 8px;">List-I (Respiratory Volume)</th><th style="border: 1px solid #888; padding: 8px;">List-II (Capacity in mL)</th></tr></thead><tbody><tr><td style="border: 1px solid #888; padding: 8px;">(A) ERV (Expiratory Reserve Volume)</td><td style="border: 1px solid #888; padding: 8px;">(I) 2500 – 3000 mL</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">(B) RV (Residual Volume)</td><td style="border: 1px solid #888; padding: 8px;">(II) 500 mL</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">(C) IRV (Inspiratory Reserve Volume)</td><td style="border: 1px solid #888; padding: 8px;">(III) 1000 – 1100 mL</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">(D) TV (Tidal Volume)</td><td style="border: 1px solid #888; padding: 8px;">(IV) 1100 – 1200 mL</td></tr></tbody></table></div> Choose the correct answer from the options given below:
  1. A-III, B-I, C-IV, D-II
  2. A-I, B-III, C-II, D-IV
  3. A-III, B-IV, C-I, D-II
  4. A-I, B-II, C-III, D-IV
### Related Formula $\begin{aligned} \text{Tidal Volume (TV)} &= 500\text{ mL}\\ \text{Expiratory Reserve Volume (ERV)} &= 1000 - 1100\text{ mL}\\ \text{Residual Volume (RV)} &= 1100 - 1200\text{ mL}\\ \text{Inspiratory Reserve Volume (IRV)} &= 2500 - 3000\text{ mL} \end{aligned}$ ### Core Logic Matching each respiratory volume with its standard physiological value: * (A) ERV $\rightarrow$ 1000 – 1100 mL (III) * (B) RV $\rightarrow$ 1100 – 1200 mL (IV) * (C) IRV $\rightarrow$ 2500 – 3000 mL (I) * (D) TV $\rightarrow$ 500 mL (II) ### Step 1: Result The correct option is A-III, B-IV, C-I, D-II. ### Pattern Recognition Sees: "Tidal Volume 500 mL". Shortcut: TV = 500 mL (D-II), IRV = largest volume 2500–3000 mL (C-I). ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Breathing and Exchange of Gases

Q160 (2024)

In humans, respiration occurs in the following steps. Arrange these steps in the correct order. A. Diffusion of $O_2$ and $CO_2$ between blood and tissues B. Diffusion of $O_2$ and $CO_2$ across alveolar membrane C. Pulmonary ventilation by which atmospheric air is drawn in and $CO_2$ 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:
  1. A, B, C, D, E
  2. E, A, C, D, B
  3. C, A, B, E, D
  4. C, B, E, A, D
### Related Formula $\text{Pulmonary Ventilation} \rightarrow \text{Alveolar Diffusion} \rightarrow \text{Gas Transport} \rightarrow \text{Tissue Diffusion} \rightarrow \text{Cellular Respiration}$ ### Core Logic The correct physiological sequence of respiration in humans is: 1. Pulmonary ventilation (breathing) (C) 2. Diffusion of gases ($O_2$ and $CO_2$) across alveolar membrane (B) 3. Transport of gases by blood (E) 4. Diffusion of $O_2$ and $CO_2$ between blood and tissues (A) 5. Utilisation of $O_2$ by cells for catabolic reactions / cellular respiration (D) ### Step 1: Result The correct sequential order is C $\rightarrow$ B $\rightarrow$ E $\rightarrow$ A $\rightarrow$ D. ### Pattern Recognition Sees: "respiration steps order". Shortcut: Starts with Pulmonary ventilation (C) and ends with Cellular respiration (D). ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Breathing and Exchange of Gases

Q177 (2024)

Match List I with List II: <div style="overflow-x: auto; margin: 1rem 0;"><table style="width: 100%; border-collapse: collapse; text-align: left; font-size: 14px;"><thead><tr><th style="border: 1px solid #888; padding: 8px;">List I</th><th style="border: 1px solid #888; padding: 8px;">List II</th></tr></thead><tbody><tr><td style="border: 1px solid #888; padding: 8px;">(A) Molluscs</td><td style="border: 1px solid #888; padding: 8px;">(I) Pulmonary respiration only</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">(B) Reptiles</td><td style="border: 1px solid #888; padding: 8px;">(II) Branchial respiration</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">(C) Adult amphibians</td><td style="border: 1px solid #888; padding: 8px;">(III) Cellular respiration</td></tr><tr><td style="border: 1px solid #888; padding: 8px;">(D) Amoeba</td><td style="border: 1px solid #888; padding: 8px;">(IV) Pulmonary and cutaneous respiration</td></tr></tbody></table></div> Choose the correct answer from the options given below:
  1. A-III, B-II, C-I, D-IV
  2. A-II, B-I, C-IV, D-III
  3. A-II, B-I, C-III, D-IV
  4. A-I, B-II, C-IV, D-III
### Related Formula $\begin{aligned} \text{Molluscs} &\rightarrow \text{Feather-like gills (Branchial respiration)}\\ \text{Reptiles} &\rightarrow \text{Lungs (Pulmonary respiration only)}\\ \text{Adult Amphibians} &\rightarrow \text{Lungs and moist skin (Pulmonary and Cutaneous)}\\ \text{Amoeba} &\rightarrow \text{Cellular respiration / Simple diffusion} \end{aligned}$ ### Core Logic Matching organisms with their respiratory modes: * (A) Molluscs $\rightarrow$ Branchial respiration via feather-like gills in mantle cavity (II) * (B) Reptiles $\rightarrow$ Pulmonary respiration only via lungs (I) * (C) Adult amphibians $\rightarrow$ Pulmonary and cutaneous respiration via lungs and moist skin (IV) * (D) Amoeba $\rightarrow$ Cellular respiration (III) ### Step 1: Result The correct combination is A-II, B-I, C-IV, D-III. ### Pattern Recognition Sees: "Molluscs Reptiles Adult amphibians Amoeba". Shortcut: Adult amphibians = Pulmonary and cutaneous (C-IV); Reptiles = Pulmonary only (B-I). ### Evaluation Rubric / Model Answer null ### Chapter Mix Class 11 Biology: Breathing and Exchange of Gases
Rankbit System
JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%) | JEE Physics: Waves (+15.5%) | Electrostatics: Concentric Shells (-29.7%) | Modern Physics: Photoelectric Clones (+34.2%) | Mathematics: Definite Integrals (+18.1%) | Chemistry: Coordination Splitting (-11.4%)

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