O-LevelBiologyCoordination & Response5090/11 · Oct/Nov 2024 · Q241 Mark

The diameter of the pupil of the eye was measured at a range of different light intensities. What is the percentage decrease in pupil diameter (rounded to 1 decimal place) when a person moves from an area of complete darkness to an area of light intensity 10000 arbitrary units? [Graph]

This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.

A45.6%

B53.4%

C54.3%

D54.4%

✓ Correct answer

D: 54.4%

Oracle Prep sorts past-paper questions by topic, so you can drill Coordination & Response and see which topics are most likely to come up next.

Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2024 Paper 1 Variant 1, question 24.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content