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GCSE Combined Science · key term
A set of working methods that prevents unwanted microorganisms contaminating a culture and reduces the risk of the cultured microorganisms spreading.
Used by OCR
Specification B5 · Biology Paper 1, Biology Paper 2, Chemistry Paper 1, Chemistry Paper 2, Physics Paper 1, Physics Paper 2
Revise: Microbiological TechniquesAseptic technique reduces these risks. Before starting, wash your hands and disinfect the work surface. Do not eat or drink in the laboratory.
Specification B5 · Biology, Chemistry, Physics, Combined Science
A method of handling microorganisms and equipment that reduces contamination by unwanted microorganisms.
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Aseptic technique reduces the entry of unwanted microorganisms. Contamination could change the results and introduce organisms that are unsafe to handle. Use a teacher-provided bacterial culture, sterile agar plates and sterile equipment, rather than collecting unknown microorganisms.
