Edexcel A-Level Biology AS 1.7 Blood Vessel Structure and Function Questions

Practise labelling arteries, veins and capillaries, linking vessel materials to pressure and exchange, and interpreting blood-flow measurements with marked evidence.

Exam points

Label arteries, veins and capillaries through wall layers, lumen size and valves.
Explain how elastic fibres, collagen and smooth muscle support blood-vessel function.
Calculate lumen-to-wall ratios or cross-sectional areas from blood-vessel measurements.

[Maximum number: 2]

(a)

The diagram shows the internal structure of a mammalian heart.

Figure for Question (a) — Edexcel A-Level Biology AS

[ 2 ]

(i)

How many of the following are correct for blood vessel P?
- carries blood to the heart
- has valves along its length
- has an endothelial lining

[ 1 ]

(ii)

Why is blood vessel Q classified as an artery?

because it carries deoxygenated blood

because it carries oxygenated blood

because it carries blood away from the heart

because it carries blood back to the heart

[ 1 ]

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Edexcel A-Level Biology AS 1.7 Blood Vessel Structure and Function Questions question 1

Question (a)

Question (i)

Question (ii)