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CAIE IGCSE Biology 9.1.1 Circulatory System As a System Questions

Practise describing a circulatory system as a pump, a network of vessels and valves that maintain one-way blood flow.

Syllabus
2026–2028
Course
Biology 0610

Exam points

  • Describe the heart as the pump that drives blood into vessels.
  • Describe arteries as carrying blood away from the heart and veins returning blood to the atria.
  • Explain how heart and vein valves prevent backflow and maintain one-way blood flow.

CAIE IGCSE Biology 9.1.1 Circulatory System As a System Questions question 1

[Maximum number: 1]

Which statements describe how the structures in the circulatory system function?
1 a muscular pump to push blood into vessels
2 valves to ensure one-way blood flow
3 veins to take blood away from the heart
4 vessels to return blood to the heart

A

1, 2 and 3

B

1, 2 and 4

C

1, 3 and 4

D

2, 3 and 4

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