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Q. No.In humans, the process of respiration involves the following steps:
Choose the correct sequence of steps from the options given below:
| A. | Diffusion of gases across alveolar membrane |
| B. | Diffusion of gases between blood and tissues |
| C. | Transport of gases by blood |
| D. | Utilisation of \(O_2\) by the cells for catabolic reactions |
| E. | Breathing or pulmonary ventilation |
| 1. | A →E→B→C→D | 2. | C →E→A→B→D |
| 3. | B →D→C→E→A | 4. | E →A→C→B→D |
Subtopic: Respiratory Organs |
89%
Level 1: 80%+
NEET - 2024
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Select the sequence of steps in respiration.
Choose the correct answer from the options given below:
| (A) | Diffusion of gases (O2 and CO2) across alveolar membrane |
| (B) | Diffusion of O2 and CO2 between blood and tissues |
| (C) | Transport of gases by the blood |
| (D) | Pulmonary ventilation by which atmospheric air is drawn in and CO2 rich alveolar air is released out |
| (E) | Utilisation of O2 by the cells for catabolic reactions and resultant release of CO2 |
| 1. | (D), (A), (C), (B), (E) | 2. | (C), (B), (A), (E), (D) |
| 3. | (B), (C), (E), (D), (A) | 4. | (A), (C), (B), (E), (D) |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
84%
Level 1: 80%+
NEET - 2023
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Lungs do not collapse between breaths and some air always remains in the lungs which can never be expelled because?
| 1. | there is a negative pressure in the lungs |
| 2. | there is a negative intrapleural pressure pulling at the lung walls |
| 3. | there is a positive intrapleural pressure |
| 4. | pressure in the lungs is higher than the atmospheric pressure |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
55%
Level 3: 35%-60%
NEET - 2016
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The figure shows a diagrammatic view of the human respiratory system with labels A, B, C, and D. Select the option that gives the correct identification, main function, and/or characteristics:
| 1. | B-pleural membrane- surrounds ribs on both sides to provide cushion against rubbing. |
| 2. | C-alveoli-thin walled vascular bag-like structures for the exchange of gases. |
| 3. | D-lower end of the lungs-diaphragm pulls it down during inspiration. |
| 4. | A trachea-long tube supported by complete cartilaginous rings for conducting inspired air. |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
76%
Level 2: 60%+
AIPMT - 2013
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Match List-I with List-II:
Choose the correct answer from the options given below:
1. A-IV,B-III,C-II,D-I
2. A-II,B-IV,C-I,D-III
3. A-III,B-I,C-IV,D-II
4. A-I,B-II,C-III,D-IV
| List-I | List-II | ||
| A. | Residual volume | I. | Maximum volume of air that can be breathed in after forced expiration |
| B. | Vital capacity | II. | Volume of air inspired or expired during normal respiration |
| C. | Expiratory capacity | III. | Volume of air remaining in lungs after forcible expiration |
| D. | Tidal Volume | IV. | Total volume of air expired after normal inspiration |
1. A-IV,B-III,C-II,D-I
2. A-II,B-IV,C-I,D-III
3. A-III,B-I,C-IV,D-II
4. A-I,B-II,C-III,D-IV
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
87%
Level 1: 80%+
NEET - 2024
Hints
Match List-I with List-II:
Choose the correct answer from the options given below:
1. A-III, B-II, C-IV, D-I
2. A-II, B-I, C-IV, D-III
3. A-I, B-III, C-II, D-IV
4. A-II, B-IV, C-I, D-III
| 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 |
1. A-III, B-II, C-IV, D-I
2. A-II, B-I, C-IV, D-III
3. A-I, B-III, C-II, D-IV
4. A-II, B-IV, C-I, D-III
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
75%
Level 2: 60%+
NEET - 2024
Hints
Vital capacity of lung is
| 1. | IRV + ERV + TV | 2. | IRV + ERV |
| 3. | IRV + ERV + TV + RV | 4. | IRV + ERV + TV - RV |
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
81%
Level 1: 80%+
NEET - 2023
Hints
Which of the following statements are correct with respect to vital capacity?
Choose the most appropriate answer from the options given below:
| (a) | It includes ERV, TV and IRV |
| (b) | Total volume of air a person can inspire after a normal expiration |
| (c) | The maximum volume of air a person can breathe in after forced expiration |
| (d) | It includes ERV, RV and IRV. |
| (e) | The maximum volume of air a person can breathe out after a forced inspiration. |
| 1. | (b), (d) and (e) | 2. | (a), (c) and (d) |
| 3. | (a), (c) and (e) | 4. | (a) and (e) |
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
74%
Level 2: 60%+
NEET - 2022
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The Total Lung Capacity (TLC) is the total volume of air accommodated in the lungs at the end of forced inspiration.
This includes:
| 1. | RV; IC (Inspiratory Capacity); EC (Expiratory Capacity); and ERV |
| 2. | RV; ERV; IC and EC |
| 3. | RV; ERV; VC (Vital Capacity) and FRC (Functional Residual Capacity) |
| 4. | RV (Residual Volume); ERV (Expiratory Reserve Volume); TV (Tidal Volume); and IRV (Inspiratory Reserve Volume) |
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
88%
Level 1: 80%+
NEET - 2020
Hints
Select the correct events that occur during inspiration.
(a) Contraction of diaphragm
(b) Contraction of external inter-costal muscles
(c) Pulmonary volume decreases
(d) Intra pulmonary pressure increases
| 1. | (c) and (d) | 2. | (a), (b) and (d) |
| 3. | only (d) | 4. | (a) and (b) |
Subtopic: Respiratory System: Pulmonary Ventilation |
69%
Level 2: 60%+
NEET - 2020
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