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Breathing and Exchange of Gases Quiz

Class XI
Biology
Breathing and Exchange of Gases
15 questions
MEDIUM

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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 of the lungs?

Nitrogen · Oxygen · Carbon dioxide · Hydrogen

3. What is the term for the volume of air inhaled or exhaled in a normal breath?

Tidal volume · Vital capacity · Residual volume · Total lung capacity

4. Which part of the brain regulates the rhythm of breathing?

Cerebrum · Medulla oblongata · Cerebellum · Hypothalamus

5. What is the main function of hemoglobin in the blood?

Transport nutrients · Fight infections · Carry oxygen · Regulate temperature