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AQA GCSE Biology

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AQA GCSE Biology Paper 1
B1 Cell Biology
B2 Organisation
B3 Infection and Response
B4 Bioenergetics
AQA GCSE Biology Paper 2
B5 Homeostasis
B6 Inheritance Variation and Evolution
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Topic: B1 Cell Biology

Give one reason for each of the following steps in the preparation of an uncontaminated culture using the aseptic technique: - Sterilising the petri dish and the culture media before use - Securing the lid of the petri dish with adhesive tape

(Marks: 2)

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