CAIE IGCSE Biology 9.3.1 Structure of Arteries Veins Questions
Practise comparing blood vessels by wall thickness, lumen diameter and the presence of valves.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- Compare the thick walls and relatively narrow lumens of arteries with the thinner walls and wider lumens of veins.
- Identify valves as a structural feature of veins that prevents backflow.
- Identify capillaries by their very narrow lumens and walls that are one cell thick.
CAIE IGCSE Biology 9.3.1 Structure of Arteries Veins Questions question 1
[Maximum number: 1]
What is a feature of veins?
A
one-cell-thick wall
B
narrow lumen
C
thick muscular walls
D
valves are present
D
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