Which of the following does not shift the oxy-haemoglobin dissociation curve to the right?

1. increased pH

2. increased carbon dioxide

3. increased temperature

4. increased 2,3 -DPG

Subtopic:  Respiratory System: Transport of Gases Part 1 | Respiratory System: Transport of Gases Part 2 | Respiratory System: Transport of Gases |
 59%
From NCERT
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NEET 2023 - Target Batch - Aryan Raj Singh
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Which of the following is entirely made of cartilage?

1. Nasal septum

2. Larynx

3. Glottis

4. Trachea

Subtopic:  Respiratory System: Upper Respiratory Tract |
From NCERT
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Trachea divides into two right and left primary bronchi at the level of:

1. Seventh cervical vertebra

2. Third thoracic vertebra

3. Fifth thoracic vertebra

4. Seventh thoracic vertebra

Subtopic:  Respiratory System: Trachea & Basic Anatomy of Lung |
 89%
From NCERT
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Contraction of diaphragm:

1. Increases the volume of the thoracic chamber in the antero-posterior axis
2. Increases the volume of the thoracic chamber in the dorso-ventral axis
3. Decreases the volume of the thoracic chamber in the antero-posterior axis
4. Decreases the volume of the thoracic chamber in the dorso-ventral axis
Subtopic:  Respiratory System: Pulmonary Ventilation |
 77%
From NCERT
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Volume of air that will remain in the lungs after a normal expiration is about:

1. 1200 ml

2. 2300 ml

3. 4600 ml

4. 5800 ml

Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
From NCERT
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The partial pressure of oxygen is equal in

1. Atmospheric air and Alveoli

2. Alveoli and Oxygenated blood

3. Alveoli and Deoxygenated blood

4. Deoxygenated blood and Tissues

Subtopic:  Respiratory System: Transport of Gases Part 1 | Respiratory System: Transport of Gases |
 64%
From NCERT
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The solubility of carbon dioxide is about _____ times higher than that of oxygen across the respiratory membrane.

1. 20-25

2. 25-50

3. 125-150

4. 200-250

Subtopic:  Respiratory System: Transport of Gases Part 1 | Respiratory System: Transport of Gases Part 2 | Respiratory System: Transport of Gases |
 89%
From NCERT
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What amount of carbon dioxide is delivered by every 100 ml of deoxygenated blood to the alveoli?

1. 4 ml

2. 5 ml

3. 15 ml

4. 20 ml

Subtopic:  Respiratory System: Transport of Gases Part 1 | Respiratory System: Transport of Gases Part 2 | Respiratory System: Transport of Gases |
 80%
From NCERT
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A center that moderates the functions of the respiratory rhythm center is located in:

1. Dorsal medulla oblongata

2. Ventral medulla oblongata

3. Pons Varolii

4. Pre-central gyrus of the cerebrum

Subtopic:  Respiratory System: Regulation of Respiration |
 57%
From NCERT
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Premature infants may develop respiratory distress and can land up in respiratory failure sometimes needing an intensive care for such infants. This may be due to:

1. the sudden change from the uterine environment to the air

2. the incomplete development of the lung surface

3. inadequate production of surfactant

4. mutations in the genes involved in lung formation

Subtopic:  Respiratory System: Exchange of Gases |
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