The majority of carbon dioxide produced by our body cells is transported to the lungs:

1. dissolved in the blood

2. as bicarbonates

3. as carbonates

4. attached to haemoglobin

Subtopic:  Respiratory System: Transport of Gases Part 2 | Respiratory System: Transport of Gases |
 91%
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AIPMT - 2006
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Pneumotaxic centre which can moderate the functions of the respiratory rhythm centre is present at:

1. Pons region in brain

2. Thalamus

3. Spinal cord

4. Right cerebral hemisphere

Subtopic:  Respiratory System: Regulation of Respiration |
 94%
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Haemoglobin is:

1. An oxygen carrier in human blood

2. A protein used as a food supplement

3. An oxygen scavenger in root nodules

4. A plant protein with high lysine content

Subtopic:  Respiratory System: Transport of Gases |
 92%
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The exchange of gases in the alveoli of the lungs takes place by:

1. osmosis

2. simple diffusion

3. passive transport

4. active transport

Subtopic:  Respiratory System: Exchange of Gases |
 88%
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Dead space air in man is:

1. 500 mL

2. 150 mL

3. 250 mL

4. 1.5 L

Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 72%
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Amount of CO2 in expired air is about:

1. 0.04%

2. 0.03%

3. 4.5%

4. 21%

Subtopic:  Respiratory System: Transport of Gases |
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What is another name for the windpipe?

1. Trachea

2. Larynx

3. Oesophagus

4. Lungs

Subtopic:  Respiratory System: Trachea & Basic Anatomy of Lung |
 77%
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The effect of cigarette smoking and radon in combination on lungs is:

1. Fatal

2. Synergistic

3. Mutualistic

4. Antagonistic

Subtopic:  Respiratory Disorders - III |
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 What is another name for the windpipe?

1.  Trachea

2.  Larynx

3. Oesophagus

4.  Lungs

Subtopic:  Respiratory System: Trachea & Basic Anatomy of Lung |
 92%
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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?

1. 2700 mL 2. 1500 mL
3. 1700 mL 4. 2200 mL
Subtopic:  Respiratory System: Pulmonary Volumes & Capacities |
 77%
From NCERT
NEET - 2019
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