ICSE Class 6 Biology - Circulatory System - Test 2 (Intermediate)
1. The heart works continuously to:
A. Digest food
B. Pump blood
C. Produce oxygen
2. Arteries carry blood:
A. Away from heart
B. Towards heart
C. Only in lungs
3. Veins carry blood:
A. Away from heart
B. Only oxygenated blood
C. Towards heart
4. Capillaries are important because they:
A. Pump blood
B. Exchange materials
C. Store food
5. Blood is made up of:
A. Cells and plasma
B. Only water
C. Only oxygen
6. RBCs are responsible for carrying:
A. Food
B. Wastes
C. Oxygen
7. White blood cells help in:
A. Digestion
B. Immunity
C. Oxygen transport
8. Platelets are important for:
A. Clotting blood
B. Digestion
C. Breathing
9. Plasma is the:
A. Solid part of blood
B. Gas part of blood
C. Liquid part of blood
10. Pulse is caused by:
A. Breathing
B. Heartbeat
C. Digestion
11. The heart is located in the:
A. Chest
B. Head
C. Stomach
12. Arteries have:
A. Thin walls
B. Thick walls
C. No walls
13. Veins contain:
A. Oxygen only
B. Thick muscles
C. Valves
14. Circulation helps in:
A. Transport of materials
B. Digestion only
C. Breathing only
15. The heart beats:
A. Once a day
B. Continuously
C. Only during exercise
16. Oxygen is transported by:
A. Platelets
B. Plasma only
C. RBCs
17. Capillaries connect:
A. Arteries and veins
B. Lungs and stomach
C. Heart and brain only
18. Blood circulation is:
A. Once a day process
B. Continuous process
C. Stopped during sleep
19. The circulatory system includes:
A. Lungs only
B. Stomach only
C. Heart, blood and vessels
20. A healthy circulatory system ensures:
A. Proper transport of materials
B. No breathing
C. No digestion