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Q. No.Select the sequence of steps in respiration.
(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
Choose the correct answer from the options given below:
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 |
77%
From NCERT
NEET - 2023
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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 |
79%
From NCERT
NEET - 2023
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Identify the region of human brain which has pneumotaxic centre that alters respiratory rate by reducing the duration of inspiration.
| 1. | Medulla | 2. | Pons |
| 3. | Thalamus | 4. | Cerebrum |
Subtopic: Respiratory System: Regulation of Respiration |
83%
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NEET - 2022
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Which of the following statements are correct with respect to vital capacity?
Choose the most appropriate answer from the options given below:
1. (b), (d) and (e)
2. (a), (c) and (d)
3. (a), (c) and (e)
4. (a) and (e)
| (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. |
Choose the most appropriate answer from the options given below:
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 |
73%
From NCERT
NEET - 2022
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In the regulation of respiration, a chemosensitive area adjacent to the rhythm centre in the medulla region of the brain, is highly sensitive to:
1. \(HCO^-_3\)
2. \(CO_2\)
3. \(O_2\)
4. \(N_2\)
Subtopic: Respiratory System: Regulation of Respiration |
79%
From NCERT
NEET - 2022
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Which of the following disorders represents decrease in respiratory surface due to damaged alveolar walls?
1. Hypocapnia
2. Bronchitis
3. Asthma
4. Emphysema
Subtopic: Respiratory Disorders: Part 1 |
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NEET - 2022
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Which of the following is not the function of conducting part of respiratory system?
| 1. | Provides surface for diffusion of O2 and CO2 |
| 2. | It clears inhaled air from foreign particles |
| 3. | Inhaled air is humidified |
| 4. | Temperature of inhaled air is brought to body temperature |
Subtopic: Respiratory System: Trachea & Basic Anatomy of Lung |
84%
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NEET - 2022
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Under normal physiological conditions in human being every 100 ml of oxygenated blood can deliver _____________ml of O2 to the tissues.
1. 10 ml
2. 2 ml
3. 5 ml
4. 4 ml
Subtopic: Respiratory System: Transport of Gases |
85%
From NCERT
NEET - 2022
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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 | ||
| 1. | Expiratory capacity | I. | Expiratory reserve volume + Tidal volume + Inspiratory reserve volume |
| 2. | Functional residual capacity | II. | Tidal volume + Expiratory reserve volume |
| 3. | Vital capacity | III. | Tidal volume + Inspiratory reserve volume |
| 4. | Inspiratory capacity | IV. | Expiratory reserve volume + Residual volume |
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
Subtopic: Respiratory System: Pulmonary Volumes & Capacities |
80%
From NCERT
NEET - 2024
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Which of the following factors are favourable for the formation of oxyhaemoglobin in alveoli?
1. High \(\mathrm{pO}_2\) and Lesser \(\mathrm{H}^{+}\) concentration
2. Low \(\mathrm{pCO}_2\) and High \(\mathrm{H}^{+}\) concentration
3. Low \(\mathrm{pCO}_2\) and High temperature
4. High \(\mathrm{pO}_2\) and High \(\mathrm{pCO}_2\)
1. High \(\mathrm{pO}_2\) and Lesser \(\mathrm{H}^{+}\) concentration
2. Low \(\mathrm{pCO}_2\) and High \(\mathrm{H}^{+}\) concentration
3. Low \(\mathrm{pCO}_2\) and High temperature
4. High \(\mathrm{pO}_2\) and High \(\mathrm{pCO}_2\)
Subtopic: Respiratory System: Transport of Gases Part 1 |
83%
From NCERT
NEET - 2024
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