ICSE Class 6 Biology - Respiratory System - Test 2 (Intermediate)
1. The process of taking air into the body is called:
A. Inhalation
B. Exhalation
C. Digestion
2. The process of removing air from the lungs is:
A. Inhalation
B. Exhalation
C. Absorption
3. Oxygen from lungs is transported to body parts through:
A. Food pipe
B. Nerves
C. Blood
4. The windpipe is called:
A. Trachea
B. Esophagus
C. Bronchus muscle
5. Gas exchange takes place in the:
A. Heart
B. Alveoli
C. Liver
6. The main waste gas released during respiration is:
A. Oxygen
B. Nitrogen
C. Carbon dioxide
7. The diaphragm helps in:
A. Breathing movement
B. Digestion
C. Blood clotting
8. During exercise, breathing becomes faster because:
A. Less oxygen is needed
B. More oxygen is needed
C. Food is not digested
9. The trachea divides into:
A. Veins
B. Arteries
C. Bronchi
10. Breathing is a:
A. Physical process
B. Chemical process
C. Digestive process
11. Cellular respiration takes place in:
A. Mouth
B. Cells
C. Stomach
12. The main organs of respiration are:
A. Heart
B. Liver
C. Lungs
13. Air is cleaned in the:
A. Nose
B. Stomach
C. Liver
14. The main purpose of breathing is to:
A. Digest food
B. Exchange gases
C. Produce blood
15. Oxygen is important because it helps in:
A. Digestion
B. Blood formation
C. Energy release
16. Exhaled air contains more:
A. Carbon dioxide
B. Oxygen
C. Nitrogen only
17. Breathing rate means:
A. Heartbeat count
B. Number of breaths per minute
C. Food intake rate
18. The respiratory system supplies:
A. Food
B. Water
C. Oxygen
19. Cells need oxygen to:
A. Release energy
B. Produce bones
C. Make food
20. Healthy lungs are important for:
A. Digestion
B. Proper breathing
C. Blood clotting