O-LevelBiologyCoordination & Response5090/11 · May/June 2012 · Q251 Mark

The table shows some of the possible effects of three drugs. Which combination of effects is correct?

Aheroin: addiction, carbon monoxide: addiction, alcohol: liver damage

Bheroin: addiction, carbon monoxide: emphysema, alcohol: increased reaction time

Cheroin: depressant, carbon monoxide: reduced birth weight of babies, alcohol: increased reaction time

Dheroin: depressant, carbon monoxide: reduced birth weight of babies, alcohol: lung cancer

✓ Correct answer

C: heroin: depressant, carbon monoxide: reduced birth weight of babies, alcohol: increased reaction time

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Topic: Coordination & Response, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2012 Paper 1 Variant 1, question 25.

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