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5

(b)

Look at the graphs. They show how pupil size (diameter) changes with age for two levels of light. low light level

high light level

9

9

8

8

7

7

pupil 6 size 5 in 4 mm 3

pupil size in mm

6 5 4 3

2

2

1

1

0

0

10

20

30

40

50

60

70

80

90

100

age in years

10

20

30

40

50

60

70

80

90

100

age in years

What conclusions can be drawn from these data and what are the implications for elderly people? ..................................................................................................................................................... ..................................................................................................................................................... ..................................................................................................................................................... ..................................................................................................................................................... ..................................................................................................................................................... ..................................................................................................................................................... ................................................................................................................................................ [4] [Total: 6]

Š OCR 2011

SPECIMEN

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B1 question 2 (2)