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gcse · biology · Pearson Edexcel · All papers
Releases 1 August 2026
Ultimate and Lifetime users can create one saved set of 4 extended-response questions for this topic and mark answers with examiner-style feedback.
Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.
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Aseptic technique and inhibition zones
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Antiseptic inhibition zone
| radius (mm) |
|---|
| 6 |
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Outbreak data in two groups
| group (category) | people in group (people) | people who became ill (people) |
|---|---|---|
| unvaccinated | 120 | 48 |
| vaccinated | 120 | 9 |
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Inhibition-zone diameters
| antiseptic (type) | repeat 1 (mm) | repeat 2 (mm) | repeat 3 (mm) |
|---|---|---|---|
| A | 11 | 12 | 11 |
| B | 18 | 17 | 19 |
| C | 16 | 9 | 15 |
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