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Paper 3Theory (Core)2 marks
Capillaries are involved in the exchange of materials between blood and body cells.
Diagram Description
Capillary Function
A diagram shows blood flowing from an artery into capillaries and then into a vein. Oxygen and nutrients move from the blood through the capillary walls into body cells. Carbon dioxide and waste products move from body cells into the blood through the capillaries.
- a[2]
State two roles of capillaries in the circulatory system.
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