O-LevelBiologyCoordination & Response5090/21 · May/June 2020 · Q610 Marks
Suggest why a car driver who is driving under the influence of alcohol or heroin is more likely to have an accident than a driver who is free of these drugs.
- (a)Suggest why a car driver who is driving under the influence of alcohol or heroin is more likely to have an accident than a driver who is free of these drugs.[3]
- (b)Describe other harmful effects of these drugs on people who use them for long periods of time. alcohol heroin[7]
Mark scheme
Marking points from the official mark scheme (May/June 2020). The mark or mark type is shown in brackets.
- [3] depressants; impulses pass more slowly; between neurones ; longer reaction times / slows reflexes ;
- [7] (for either alcohol or heroin) addiction; loss of inhibition AW ; damage to liver ; loss of memory ; loss of appetite; long-term monetary cost ; crime; effect on family life ; (for alcohol) unintentional injury / clumsiness ; mouth / throat cancer ; damage to CNS AW ; (for heroin) risk of infection from needles, e.g. AIDS; insomnia;
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