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Breathing and Exchange of Gases Quiz
Class XI
Biology
Breathing and Exchange of Gases
12 questions
HARD
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Preview questions
1. What is the primary muscle involved in the process of breathing?
Diaphragm · Intercostal muscles · Abdominal muscles · Pectoral muscles
2. Which gas is primarily exchanged in the alveoli during respiration?
Oxygen · Carbon dioxide · Nitrogen · Hydrogen
3. What is the term for the volume of air inhaled or exhaled in a normal breath?
Vital capacity · Tidal volume · Residual volume · Total lung capacity
4. Which part of the respiratory system is responsible for the warming and humidifying of air?
Trachea · Bronchi · Nasal cavity · Alveoli
5. What is the role of surfactant in the lungs?
Facilitates gas exchange · Reduces surface tension · Increases lung capacity · Filters air
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