Question Paper
Class / Subject: Class 6 (ICSE) · Science
Chapter: Chapter 19 — Chapter 19: The Circulatory System
Time Allowed: 32 minutes
Max Marks: 16
1. What organ pumps blood? [1]
(A) The heart
(B) The lungs
(C) The stomach
(D) The liver
2. What do arteries carry? [1]
(A) Oxygen-rich blood from the heart
(B) Oxygen-poor blood to the heart
(C) Only water
(D) Nothing
3. What do veins carry? [1]
(A) Oxygen-poor blood to the heart
(B) Oxygen-rich blood from the heart
(C) Only water
(D) Nothing
4. What do red blood cells do? [1]
(A) Carry oxygen
(B) Fight infection
(C) Help clotting
(D) Nothing useful
5. What do white blood cells do? [1]
(A) Fight infection
(B) Carry oxygen
(C) Help clotting
(D) Nothing useful
6. What do platelets do? [1]
(A) Help blood clot
(B) Carry oxygen
(C) Fight infection
(D) Nothing useful
7. What does the circulatory system ensure? [1]
(A) Cells get oxygen and nutrients
(B) Cells get no oxygen
(C) Nothing important
(D) Only muscles get oxygen
8. Why is the circulatory system important? [1]
(A) It delivers oxygen and nutrients to all cells
(B) It has no importance
(C) Only for the heart's benefit
(D) Only for muscles
9. What organ pumps blood? [1]
(A) The heart
(B) The lungs
(C) The stomach
(D) The liver
10. What do arteries carry? [1]
(A) Oxygen-rich blood from the heart
(B) Oxygen-poor blood to the heart
(C) Only water
(D) Nothing
11. What do veins carry? [1]
(A) Oxygen-poor blood to the heart
(B) Oxygen-rich blood from the heart
(C) Only water
(D) Nothing
12. What do red blood cells do? [1]
(A) Carry oxygen
(B) Fight infection
(C) Help clotting
(D) Nothing useful
13. What do white blood cells do? [1]
(A) Fight infection
(B) Carry oxygen
(C) Help clotting
(D) Nothing useful
14. What do platelets do? [1]
(A) Help blood clot
(B) Carry oxygen
(C) Fight infection
(D) Nothing useful
15. What does the circulatory system ensure? [1]
(A) Cells get oxygen and nutrients
(B) Cells get no oxygen
(C) Nothing important
(D) Only muscles get oxygen
16. Why is the circulatory system important? [1]
(A) It delivers oxygen and nutrients to all cells
(B) It has no importance
(C) Only for the heart's benefit
(D) Only for muscles