ICSE 2003: SCIENCE Paper 3 (Biology) - Question 6 (a) Diagrammatic questioning.

SCIENCE

Paper 3 (Biology) - 2003

(One Hour and a half)

Question 6
(a) The diagram below represents a certain category of blood vessels showing the role of a special structure in their walls:

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1.
(i) Name the kind of blood vessels shown.

2.
(ii) Name the structure shown inside the blood vessels.

3.
(iii) Describe the role of these structures.

4.
(iv) Are these structures present in any other kind of blood vessel? If so, name it.

5.
(v) Towards which side of the figure (top or bottom) is the heart located?

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